Abstract:
An integrated cutting and trimming tool including a cutter tool body having, in one embodiment, a plurality of spaced-apart cutting elements on its cutting face, channel extensions extending between the spaced-apart cutting elements and abrasive coated radially projecting trimming elements. The abrasive coated radially projecting trimming elements are sized and shaped to fit within the confines of the channel extensions and can be fixedly or removably secured to the cutter body. The abrasive coated radially projecting trimming elements may be attached to a ring-shaped body to allow for unitary attachment to the cutter body. The integrated cutting and trimming tool may be adapted for edge cutting and trimming and overcomes the necessity of having two machines and processes to accomplish the cutting and trimming of materials by condensing the manufacturing process into one step.

Description:
TECHNICAL FIELD  
       [0001]     This present invention relates to multi-edge material cutting tools. More particularly it relates to a new and improved diamond and carbide cutting tool specially adapted to receive integrated abrasive grit trimming elements for accomplishing cutting and trimming operations in one step and a method of using same.  
       BACKGROUND OF THE INVENTION  
       [0002]     In the past, diamond and carbide cutting tools, such as wood working cutters, have been utilized for cutting a variety of materials, including wood, nonferrous metals, rubber drive belts and plastic. An example of a cutting tool of the known prior art such as is useful in the manufacture of V-belts is shown in  FIG. 1 . A cutting tool  1  of the known prior art consists of a generally disc-shaped cutter body  2  with a central bore  3 . An outer periphery  4  of a cutting face  5  of the cutter body  2  is adapted to receive a plurality of radially arranged and spaced-apart cutting elements  6 . These cutting elements  6  are diamond-edged and project from the cutting face  5  of the cutter body  2  at predetermined angles found beneficial in the cutting of the material at hand. The plurality of diamond or carbide edged cutting elements  6  are fixedly brazed on to the cutting face  5  of the disc-shaped cutter body  2  near its outer periphery  4  at calculated spaced-apart intervals  7 .  
         [0003]      FIG. 2  shows the arrangement of the prior art cutting tool  1  during the manufacture of V-belts. In the manufacture of V-belts, the cutting tool  1  is connected to an arbor  8  that is connected to an energy source. A second cutting tool  9  is mounted upon the arbor  8  in face-to-face relation with first cutting tool  1 . In this orientation the cutting elements  6 ,  10  of the two cutting tools  1 ,  9  are arranged so that their cutting elements  6 ,  10  are positioned opposite, but at angles, to each other. It is to be appreciated at this point that due to the face-to-face orientation of the two cutting tools  1 ,  9  along the common arbor  8 , cutting tools  1 ,  9  are identical in manufacture except for the fact that their cutting elements  6 ,  10  are oriented in opposite directions on their respective cutter bodies  2 ,  11 . When cutting tools  1 ,  9  are mounted upon the common arbor  8  in this fashion, a V-shaped channel  12  is formed between the opposing cutting elements  6 ,  10  of the cutting tools  1 ,  9 . When the cutting tools  1 ,  9  are powered to rotate, stock V-belt material  13  is drawn through the V-shaped channel  12  formed by the opposed rotating cutting elements  6 ,  10 . By this manner the drawn stock V-belt material  13  is cut to size. The stock V-belt material  13  may contain woven or wound binding materials such as nylon or Kevlar to increase the strength, resiliency or useful working life of the manufactured V-belt. It will be appreciated that other materials apart from stock V-belt material, such as wood, non-ferrous metal and plastic material, could be cut or trimmed to varying patterns as desired using this construction of cutting tool.  
         [0004]     In the manufacture of V-belts containing woven or wound binding materials a problem arises in that when a V-belt is cut to size, threads of the binding material project from resulting edges of the cut V-belt such that the edges are rough and in need of trimming. The prior art method of V-belt manufacture thus requires that a secondary trimming operation be performed upon the cut V-belt to remove the rough edges and threads. This secondary trimming operation is accomplished by one of two methods: grinding or slicing. When trimming is accomplished by way of grinding, another machine dedicated to grinding the edges of the rough-hewn V-belts must be used. When trimming is accomplished by way of slicing, a separate slicing machine employing thin rotary steel or carbide blades that dull quickly is used. This slicing operation is slow, costly and relatively dangerous. Accordingly, the current state of the art of V-belt manufacturing involves the two-step process of cutting stock V-belt material and then trimming the rough edges of the cut V-belt by means of grinding or slicing. The first step of the manufacturing operation involves cutting the belt to dimension using a cutting tool as is described above. The second step involves using an abrasive wheel or slicing knife to trim the binding material threads left after the initial cut. There is thus a need in the art for a cutting tool that reduces the steps and production time involved in cutting and trimming V-belts. Therefore, any tool or method that would increase the rapidity of V-belt production is desirable. By extension, any manufacturing process that requires primary cutting and then secondary grinding, sanding, polishing or slicing will benefit from a cutting tool design that combines these processes in a manner that provides decreased manufacturing cycle time in production.  
       SUMMARY OF THE INVENTION  
       [0005]     The present invention fulfills the need for faster V-belt manufacture by providing for an integrated cutting and trimming tool for use in V-belt manufacture. In one embodiment, the integrated cutting and trimming tool comprises a generally disc-shaped cutter body with a plurality of spaced-apart cutting elements at the periphery of the cutter body, combined with a generally ring-shaped abrasive trimming plate having one or more radially projecting trimming elements. Each radially projecting trimming element extends from the outer ring portion of the abrasive trimming plate. Each radially projecting trimming element is selected, arranged and sized such that when the trimming plate is secured to a cutting face of the cutter body, each radially projecting trimming element lies in a specially created channel located in the space between two cutting elements on the cutter body. A further advantage of the present invention is realized by the fact the abrasive plate can be removably secured to the cutter body. By virtue of this feature the abrasive trimming plate is held securely to the cutter body during cutting and trimming operations. Yet, by using mechanical attachment means as opposed to fixed attachment means, the abrasive trimming plate can be easily removed from the cutter body for purposes of replacement and inspection.  
         [0006]     In the preferred embodiment, the outer ring portion of the abrasive plate has a radial dimension less than the radial distance of cutting elements on the cutter body (as measured from the center of a central bore to the axial edges of cutting elements). When secured to the cutting face of the cutter body, the abrasive plate is positioned in such fashion such that its one or more radially projecting trimming elements extend into channels formed into the cutter body and extending between the cutting elements of the cutting tool. In the case where the cutting tool utilizes mechanically secured disposable cutting tips such as are explained below, the radial distance of the outer ring portion of the abrasive plate would need to be modified to account for any structural projection from the cutting face of the cutter body serving as part of a cutting element receptacle. These cutting element receptacles receive cutting elements including a clamping wedge and a disposable cutting tip.  
         [0007]     When secured to the cutting face of the cutter body, the abrasive plate is positioned in such fashion such that each of its radially projecting trimming elements extend into a channel formed into the cutter body and extend between the cutting element receptacles of the cutting tool. A cutting tool utilizing the present invention can therefore accomplish both the cutting and trimming operations necessary for V-belt manufacture in one operation instead of the two-step operation currently necessitated by the prior art. A further advantage of the present invention lies in the fact that the trimming performance of the integrated cutting and trimming tool can be modulated by altering the shape of the tip portion, including tip edge, of the radially projecting trimming elements. Additionally, the trimming depth of the of the abrasive plate on the integrated cutting and trimming tool of the present invention can be adjusted by means of shims inserted between the abrasive trimming plate and the cutter body.  
         [0008]     In another embodiment of the present invention, one or more individual trimming plates (trimming elements without interconnecting ring portion) are each separately secured to the face of the cutter body between the cutting element receptacles. Each radially projecting trimming plate is selected, arranged and sized such that when the trimming plate is secured to a cutting face of the cutter body, each radially projecting trimming plates lies in a specially created channel in the space between two cutting element receptacles on the cutter body. A further advantage of the present invention is realized by the fact these individual trimming plates can be removably secured to the cutter body. By virtue of this feature the individual trimming plates are held securely to the cutter body during cutting and trimming operations. Yet, by using mechanical attachment means as opposed to fixed attachment means, each individual trimming plate can be easily removed from the cutter body for purposes of replacement and inspection. The trimming depth of the individually securable abrasive trimming plate on the integrated cutting and trimming tool of the present invention can be adjusted by means of shims inserted between the abrasive trimming plate and the cutter body.  
         [0009]     Furthermore, the present invention is not limited to face cutters and can be adapted for use with other cutting tools such as circular saw blades, whose cutting elements are located on the edge of the tool, as opposed to its face. Hence, in a further embodiment of the present invention, individual trimming elements are secured between the cutting teeth of a circular saw blade and the benefits of the combined cutting and trimming tool realized. As in the case with the face cutting and trimming tool, the use of shims to vary the height of the radially projecting trimming elements, in relation to the cutting elements, provides a means to adjust a single cutting tool for use in cutting a wide variety of materials and combinations of materials. Additionally, the present invention includes not just the integrated cutting and trimming tool, but also an improved cutting tool, face-cutting and edge-cutting, uniquely adapted to accept a removably securable abrasive grit plate or the removably securable individual trimming elements. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0010]      FIG. 1  is a perspective view of a cutting tool of the prior art.  
         [0011]      FIG. 2  is a perspective view a prior art cutting tool mounted in arrangement with a second cutting tool during the V-belt manufacturing process.  
         [0012]      FIG. 3  is a view of a braze-on cutting element of the prior art.  
         [0013]      FIG. 4  is a view of a cutting tool of the present invention capable of receiving a removably secured abrasive plate.  
         [0014]      FIG. 5  is an exploded view of a cutting element and cutting element receptacle of a cutting tool used in the preferred face cutting tool embodiment of the present invention.  
         [0015]      FIG. 6  is a view of a face cutting tool embodiment of the integrated cutting and trimming tool of the present invention.  
         [0016]      FIG. 7  is an exploded view of the abrasive ring removed from the cutter body.  
         [0017]      FIG. 8  is a view of a face cutting tool embodiment of the integrated cutting and trimming cutting tool of the present invention utilizing independent and separately securable trimming plates.  
         [0018]      FIG. 9  is a view of an edge cutting tool embodiment of the integrated cutting and trimming cutting tool of the present invention. 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0019]     Conventional V-belt cutting tools such as depicted in  FIG. 1  cut well, however, they suffer from the short useful lifespan of the cutting elements. This is particularly a concern with cutting tools used in the manufacture of V-belts containing binding material such as nylon or Kevlar strand material. V-belts utilizing such binding materials, incorporate binding materials such as nylon and Kevlar between rubber layers to improve belt wear and prevent expansion. Binding materials such as nylon and Kevlar are, however, relatively difficult to cut.  
         [0020]     Prior art cutting tools generally include cutting tool bodies employing braze-on cutting blades for rough cutting V-belt stock material to size. In recent years these cutting blades have utilized diamond cutting edges due to the advantages of diamond-edged tools. In particular, diamond-edged cutting tools are preferred because they provide longer tool life than either steel or carbide cutting edges.  
         [0021]     Referring to  FIG. 3 , there is illustrated a braze-on diamond-edged embodiment of the cutting element  6  of the known prior art. The diamond-edged cutting element  6  of the known prior art is manufactured by the machining of commercially available stock diamond rounds. A diamond round consists of diamond material bonded to a substrate of metal carbide. In order to manufacture a braze-on cutting element, the round is cut through use of wire electrical discharge machining (EDM) or lasers into the desired shape of a cutting tip. With the braze-on diamond cutting element  6 , the diamond must cover the entire surface or face of the cutting edge  17  of the cutting element  6  due to the fact that a significant amount of carbide material  18  below the cutting edge  17  must remain to permanently affix the cutting element  6  to the cutter body  2  (shown in  FIG. 1 ) by means of a braze alloy. Prior art cutting tools of the type shown in  FIGS. 1 and 2  require expensive and highly specialized carbide or diamond grinding machinery to sharpen and maintain such cutting tools. Accordingly, with the cutting tool  1  using brazed-on cutting elements  6 , when the cutting edges  17  become dull, the entire tool body  2  must be shipped to an outside service provider for sharpening. This process takes from one to three weeks to complete, during which time the cutting tool is not available for production use. This length of service establishes the need for at least one, and normally two, complete sets of back-up tooling to insure that manufacturing production can continue without interruption.  
         [0022]     Referring now to  FIGS. 4 and 5 , there is illustrated a cutting tool  20  for use with the present invention that utilizes an improved cutter body  21  as compared, for example, to cutter body  2  of cutting tool  1  depicted in  FIG. 1 . By use of this improved cutting tool  20  the above-described costs and time delays attendant to cutting tools utilizing brazed-on cutting tips can be overcome.  
         [0023]     The cutting tool  20  depicted in  FIG. 4  includes a cutter body  21  with central bore  22 . As opposed to the cutting tool employing brazed-on cutting elements, the improved cutting tool utilizes disposable cutting tips  23  that are mechanically attached to the cutter body  21 . In this fashion dull cutting tips may be easily removed and discarded. When cutting tips  23  become dull, they are then replaced with new, sharp cutting tips. The removal and replacement of cutting tips  23  can be accomplished while the cutter body  21  remains in place on its powering device. Accordingly, by virtue of these advantages, the best mode for practicing the integrated cutting and trimming tool of the present invention disclosed herein utilizes this improved upon cutting tool  20 .  
         [0024]     Cutter body  21  has a general disc form and is made of an alloy such as aluminum alloy or a steel alloy. The cutter body  21  central bore  22  allows for mounting on an arbor. A plurality of cutting element receptacles  24  are provided along periphery  25  of the cutting face  26  of cutter body  21  to securely hold a plurality of removable cutting elements  27 . These cutting element receptacles  24  are adapted to receive the plurality of cutting elements  27  by means of clamping pressure. These receptacles  24  are formed and shaped according to the particular clamping method chosen to attach the cutting elements  27  to the cutting tool body  21 . The receptacles  24  and the cutting elements  27  secured therein, are located at spaced-apart intervals  28  along the outer periphery  25  of the cutting face  26  of cutter body  21 .  
         [0025]     Cutter body  21  is adapted to receive cutting elements  27  that include disposable cutting tips  23  that are mechanically attached to the cutter body  21 .  FIG. 5  illustrates the attachment method of a cutting element  27  into a cutting element receptacle  24 . In the arrangement shown, each cutting element receptacle  24  is machined so as to receive the components of a cutting element  27  and a clamping means for removably securing the cutting element  27  into position. In the embodiment shown, the clamping means is provided by a screw down clamping piece  30 .  
         [0026]      FIG. 5  further illustrates the constituent parts of cutting element  27  as removed from the cutting element receptacle  24 . The cutting element  27  is comprised of two parts: a clamping wedge  31  and a diamond-edged cutting tip  23 . The clamping wedge  31  has a general block shape. The clamping wedge  31  is made of any hard material such as steel or carbide that is capable of accepting clamping pressure without deformation. A back portion  33  of the clamping wedge  31  has a slot  34  adapted to receive fixing projection  35  of screw-down clamping piece  30  that is screwed down into the cutter body  21 . In a preferred embodiment, a front face  36  of the clamping wedge  31  contains two posts  37 ,  38 .  
         [0027]     Cutting tip  23  includes a cutting edge  40  and is configured with side slots  41 ,  42  adapted to receive the two posts  37 ,  38  projecting from the front face  36  of clamping wedge  31 . The cutting tip  23  is cut from commercially available diamond rounds using wire EDM in a fashion that minimizes the use of the expensive polycrystalline diamond coating portion  43  to the cutting edge  40  of the cutting tip  23 . When the front face  36  of clamping wedge  31  and the cutting face  44  of cutting tip  23  are brought in face-to-face contact with each other, side slots  41 ,  42  on the cutting tip  23  receive posts  37 ,  38  on the clamping wedge  31 . The now joined clamping wedge  31  and cutting tip  23  form a cutting element  27  that is inserted as a unit into the cutting element receptacle  24  and mechanically attached to the cutter body  21  in the manner described below.  
         [0028]     Each cutting element receptacle  24  is formed into the cutting face  26  of the cutter body  21  such that it includes a raised portion  45  with an adjacent trough  46 . The raised portion  45  includes an angled clamping face  47  that is ordinarily, but not necessarily radially aligned with the cutter body  21 . The angled clamping face  47  of the raised portion  45  is a flat surface that extends from a top portion  48  of the raised portion  45  to the bottom of the trough  46 . Trough  46  is shaped to accommodate and hold the cutting element  27  and screw down clamping piece  30 .  
         [0029]     When the cutting tip  23  is brought into arrangement with the clamping wedge  31  as indicated above, the entire cutting element  27  is then seated as shown in the cutting element receptacle  24  and against the clamping face  47  of raised portion  45 . The screw-down clamping piece  30  is then placed into the cutting element receptacle with slot  34  on the back  33  of the clamping wedge  31  snugly receiving clamping piece fixing projection  35 . Clamping piece  30  is provided with a threaded screw hole  50 . Screw hole  50  receives securing means, such as a hex bore screw  51 , which is threaded into screw hole  50  and on into a screw hole  52  in cutting element receptacle  24  until tightened. In this fashion clamping piece  30  is firmly secured to cutter body  21 . In the arrangement indicated, posts  37 ,  38  of the clamping wedge  31  in conjunction with the clamping force exerted by screw down clamping piece  30  pressing the cutting tip  23  against the clamping face  47  of the raised portion  45  supply anti-ejection means for holding cutting element  27  to the cutter body  21 . Screw  53  located on radial edge  54  of the cutter body  21  and adjacent to the cutting element receptacle  24  provides additional protection against centrifugal ejection and serves to position the cutting tip  23  in cutting element receptacle  24 . When turned clockwise, screw  53  is drawn tight into screw hole  80  in the cutter body  21  such that screw head  82  is drawn into contact with bottom portion  81  of cutting tip  23 . In this fashion screw head  82  serves as a barrier against centrifugal ejectment of the clamping wedge  31  and cutting tip  23 .  
         [0030]     The screw down clamping piece  30  therefore provides means for removably securing the clamping wedge  31  and cutting tip  23  in the cutting element receptacle. Once the cutting element  27  is secured in the cutting receptacle  24 , the cutting edge  40  of the cutting tip  23  is disposed at a predetermined angle found sufficient to cut V-belt material to the desired dimension. By repeating the above procedure all of the cutting element receptacles  24  on the cutter body  21  can be outfitted with cutting elements  27 .  
         [0031]     Referring now to  FIG. 7 , cutting face  26  of the cutter body  21  has a ring-shaped channel  60  with channel projections  61  machined into it. The channel  60  and the channel projections  61  are preferably formed by machining the cutter body  21 . The outer edge of ring-shaped channel  60  has a radial dimension, as measured from the center of central bore  22 , smaller than the radial distance from the center of the central bore to the axial edges  71  of the cutting element receptacles  24 . The channel projections  61  extend from outer edge  64  of the ring-shaped channel into the interval spaces  28  between the spaced-apart cutting element receptacles  24 .  
         [0032]     The integrated cutting and trimming tool of the present invention is explained below and by referring to  FIGS. 6 and 7 .  FIG. 6  shows a top angle view of the integrated cutting and trimming tool.  FIG. 7  shows an exploded view of the abrasive trimming plate  62  removed from the cutter body  21 . In  FIGS. 6 and 7 , the individual members are denoted by the following numbers:  21 : cutter body,  22 : central bore,  60 : ring-shaped channel,  24 : cutting element receptacle,  27 : cutting element,  61 : channel projection,  62 : ring-shaped abrasive trimming plate,  63 : radially projecting trimming element.  
         [0033]     In the currently understood best mode for practicing the invention, ring-shaped channel  60  and channel projections  61  provide a recessed seat in the cutting face  26  of the cutter body  21  to receive the similarly shaped (generally ring-shaped) abrasive coated trimming plate  62 . As shown in  FIGS. 6 and 7 , the abrasive trimming plate  62  has a first face  76  and a second face  77  and is seated in the ring-shaped channel  60  such that one or more radially projecting trimming elements  63  of the abrasive coated trimming plate  62  are received by and lie in the channel projections  61 . In the preferred embodiment, the abrasive trimming plate  62  is provided with through holes  66  through which screws  67  are inserted and used to secure the plate  62  down to the cutter body  21  by means of screw holes  70  in the cutter body. Once screwed down, the abrasive coated trimming plate  62  is removably secured in the ring-shaped channel  60  and channel projections  61 .  
         [0034]     The abrasive trimming plate  62 , particularly the one or more radially projecting trimming elements  63 , may be formed of any durable material such as steel and then coated with abrasive material  68 , such as steel, carbide or diamond. The performance of the trimming plate  62  may be adjusted by altering the shape of tip portion  73  of the radially projecting trimming element  63 . In this regard, grinding surface  74  of tip portion  73  may be beveled. Additionally or alternatively, sides  75  of tip portion  73  may be tapered. An abrasive trimming plate depicting trimming elements  63  with beveled and tapered tip portions  73  is depicted in  FIGS. 6 and 7 . The performance of trimming element  63  may also be modulated by providing for a tip edge  79  that is curved (not shown), as opposed to straight (shown), along its width.  
         [0035]     For economy&#39;s sake only the tip portion  73  of the trimming elements  63  need be coated with abrasive material  68 . In the preferred embodiment of the present invention both sides of each trimming element  63  are coated with abrasive material  68 . In this fashion when one side of the abrasive trimming plate  62  becomes worn from use it can be quickly removed from the cutter body  21  and flipped over exposing new abrasive material. The abrasive trimming plate  62  can then be quickly re-installed to the cutter body  21 , exposing fresh abrasive coating. Additionally, each side of the coated abrasive plate can be coated with different grade or type of grit so as to allow for modulating trimming speed and performance or to accommodate differences in materials being cut.  
         [0036]     It is to be appreciated at this point that the abrasive plate  62  may be fixedly attached to cutter body  21  by brazing or other means and the advantages of one step cutting and trimming of V-belts realized. Additionally, however, cutting tool  20  of the present invention may be purchased and used strictly as a cutting tool without the integrated abrasive tool feature described herein. By virtue of channel  60 , channel projections  61  and screw holes  70 , cutting tool  20  is uniquely adapted to securely receive a later purchased or replacement abrasive coated trimming plate  62 , which may be secured to cutter body  21  by use of screws  67 . Thus, the end user is afforded the choice of purchasing the cutting tool  20  with or without the integrated abrasive trimming plate  62  feature. The end user also has the choice of removing the abrasive trimming plate  62  when cutting materials that do not require its use. It is also to be appreciated at this point that the integrated cutting and trimming tool of the present invention may be made without channel  60  and that utilizing a cutter body with channel  60  in the cutter body  21  merely represents a preferred embodiment for practicing the invention.  
         [0037]     The integrated cutting and trimming tool accomplishes both the cutting and trimming operations necessary for one-step V-belt manufacture in one operation. Moreover, it is a further advantage of the present invention that the trimming depth of the integrated cutting and trimming tool can be easily adjusted. In this regard the integrated cutting and trimming tool provides for a shim or shims  72  to be inserted between the cutter body  21  and the abrasive coated ring-shaped plate trimming  62 . By adding and removing shims  72  the depth of trim of the abrasive trimming plate  62  can be varied in relation to the cutting tips  23 .  
         [0038]     The construct of the invention may be further varied depending on a number of factors, such as, in the case of V-belt manufacture, the size of belt stock and also, the type and composition of belt stock, including binding fibers. As shown in  FIG. 8 , the cutter body may be adapted such that instead of receiving a generally ring-shaped trimming plate with radially projecting trimming elements, the cutter body  83  could be adapted to receive one or more individually securable trimming plates  92  (trimming elements without the interconnecting ring) that are located between the cutting elements. The individually securable trimming plates  92  can be fixedly secured or removably secured to cutter body  83 . Several means can be employed to removably secure each individually securable trimming plate to the cutter body, including without limitation, a screw or screws, clamping force or retaining slot. In the embodiment shown, trimming plates  92  are removably secured to cutter body  83  by means of screws  97 . Though the present invention has particular application in the cutting and trimming of V-belts, the invention may also be used to cut and trim a variety of materials. Accordingly, while specific embodiments have been shown and described, many variations are possible. The shape of the cutter body and trimming plate may be changed as desired to suit the equipment with which it is used. In particular, the novel integration of combining trimming elements with a cutting tool of the present invention may be adapted for use with other cutter bodies, such as those used for circular saw blades that have cutting elements located on the edge of the tool, as opposed to its face. A view of the invention in this embodiment is shown in  FIG. 9 . In this edge-cutting embodiment of the present invention, edge cutting tool  84  with cutter body  85  and cutting teeth  86  located on peripheral edge  93  is adapted to receive the separately securable, edge-mounted and abrasive coated trimming elements  87  in the peripheral spacing segments  88  on peripheral edge  93  of cutter body  85 . In this embodiment the peripheral spacing segments  88  are machined so as to accept trimming elements  87 , which in the preferred embodiment may be L-shaped or U-shaped. Each trimming element  87  is secured to cutter body  85  by means of a screw  89 . Surface  90  of trimming element  87  is coated with abrasive  91  to accomplish the trimming function of the tool. When the described abrasive coated trimming elements are combined with an edge-cutting tool such as is depicted in  FIG. 9 , the benefits of the combined cutting and trimming tool are realized. As in the case with the face cutting and trimming tool, the height of the trimming elements, in relation to the cutting elements, may be varied. In one embodiment, shims (not shown) between the trimming elements and the cutter body provide a means to adjust a single cutting and trimming tool for use in cutting and trimming a wide variety of materials and combinations of materials.  
         [0039]     The shape and dimensions of the cutter body and trimming plate may also be changed to suit the operating speed of the tool or the speed at which stock is fed through the tool. Those of ordinary skill in the art will appreciate that the invention can be carried out with various other minor modifications from that disclosed herein, and same is deemed to be within the scope of this invention.