## 3 Results
### Results of the Simulations  
The simulation of the bending process of the designed cutting blade was carried out with input values mentioned in Section 2.2, and then in the postprocessor, separate analyses were displayed.  
Analysis of the deformations at the bending of the designed cutting blade of heat-treated high carbon steel 1.1274 according to [28] and the resulting manufacturability of the part is shown in Figure 9. From the figure, it is seen that the highest values of equivalent stress of 343.7 MPa are in places of bending. Since heat-treated high-carbon steel 1.1274 according to [28] has a tensile strength of (1000 to 2000) MPa, the value is safe, so no extreme plastic deformation localisation occurs.  
Figure 9: Analysis of deformations at bending of the designed cutting blade of the oscillating cutter from heat-treated high-carbon steel 1.1274 according to [28] and the resulting manufacturability of the part.  
The thickness analysis after bending the designed cutting blade of the oscillating cutter of the treated high carbon steel 1.1274 according to [28] is shown in Figure 10. From the figure, it is seen that the lowest value of the thickness after bending 0.583 mm is in the place of bending. Since the treated high carbon steel 1.1274 according to [28] has an initial thickness of 0.6 mm, the maximum value of the thinning after bending is 0.017 mm.  
The greater the thinning of the material in the bending areas, the greater the angle of the bending, the greater the friction between the material and the tool, the smaller the radius of the bending, and the lower the formability of the material. Undue material thinning at the place of the sharp bend can be prevented only by the previous creation of the material stock.  
Analysis of the formability of the designed cutting blade of heat-treated high-carbon steel 1.1274 according to [28] was carried out using the sheet metal forming limit diagram used (Figure 11) related to the analysis of deformations at bending (Figure 9). From the displayed values of the main logarithmic deformations in the bend area, which are found at the bottom of the diagram, it is seen that the designed bending is safe, so without the risk of extreme local thinning or crack in the bend area.  
Figure 11: Analysis of the manufacturability of the designed cutting blade of the oscillating cutter from heat-treated high-carbon steel 1.1274 according to [28] with the use of the forming limit diagram of the sheet metal used.  
Figure 10: Analysis of thickness after bending the designed cutting blade of the oscillating cutter from treated high-carbon steel 1.1274 according to [28].  
The simulations showed that extreme plastic deformation localisation does not occur when bending the blade, the maximum value of thinning after bending is 0.017 mm in the place of bending, and the values of the main logarithmic deformations in the bend area are at the bottom of the forming limit diagram of the blade material, so the designed bending is without risk of arising extreme local thinning or crack asking in the bend area. Thus, it has been verified that the designed bending is safe and that the designed shape of the cutting blade should not be modified.