EDGEMONHIGH STRIP EDGE QUALITY THROUGH
AUTOMATIC INSPECTION
High precision trimming is essential for producing highquality strip. The condition of the knife and detection ofknife breakouts are two of the most important factors
for trimming. With the help of the Long Term Viewer
software relationships between quality and process canbe identified easily and improvements made.
YOUR CHALLENGE
In order to maintain high product quality and plant
availability, the trimming shear must be set up in a properway. By reducing the time required for inspection of theedges (prior to and after trimming), plant availability canbe extended.
The early detection of defects results in less scrap andless damage to rollers. Being able to predict lifetime helps
optimize and reduce operator maintenance efforts.
Without an automatic inline inspection it is nearly
impossible to obtain a complete overview of what exactly
happens during the cutting process of the strip edge.
Changed or modified knife settings have an enormous
impact on the edge quality.
A simultaneous inspection of both sides of the strip as well
as a reduction of knife-parameter optimization-time would
increase total plant efficiency.
Today strip edge inspection is done by the operator. So,
the strip accuracy depends highly on operator experience,
additionally manual strip inspection is dangerous as theoperator needs to get very close to the strip.
Stopping the line for inspection influences productivity andincreases the risk of additional defects on the knife and thestrip.
Operator inspection is subjective and only enables areaction to any current quality issues. It does not allow
systematic identification of the relationship between
trimming quality and product or process parameters (e.g.
thickness, steel grade, plant speed…). Sustainable process
improvement is therefore difficult and lengthy.

OUR SOLUTION
EdgeMon enables the simultaneous inspection of thetrimming process for both sides of the strip at full plantspeed. Magnified images are visualized, knife breakouts
are detected automatically and warnings are issued in theevent of worsening edge quality. Cut-break ratio and burr
are measured and enables operators to make decisions
on knife changes, knife set-up or quality clearance of thecoil.
For quality and / or process engineers the inspection
results and images are stored for a minimum of 1 year.
With the help of the Long Term Viewer software the data
can be screened, relationships between side trimming
quality and product parameters can be identified andbased on this the side trimming process can be improved
sustainably.
EdgeMon is suitable for pickling lines and finishing lines– all plants equipped with side trimmers. EdgeMon isavailable as a stand-alone system as well as integrated
into existing or new side trimmers.

EdgeMon-integrated: Integration to side trimmers

Operator HMI

Long Term Viewer software for easy data screening

INSPECTION TASKSEdgeMon has been developed for the visualization andthe evaluation of strip edge quality. Knife breakouts aredetected and the general quality of the side trimming
process is evaluated. Burr and cut ratio are measured by
the tool, and warnings and alarms are issued automatically.

ADVANTAGES OF EDGEMON

The system collects images from the strip irrespective of
the strip speed. This feature allows the current condition of
the knife to be displayed and recorded.

• Reduce maintenance costs• Avoids strip breakage due to knife breakouts• Increases efficiency of the plant through thesimultaneous inspection of both sides at fullspeed• Save setup time and tool costs• Reduce reclamation costs

Thanks to the image processing algorithm, the images
can be inspected and evaluated with respect to strip edge
quality. Based on this evaluation, decisions can be maderegarding knife changes in case of breakouts or knife
setting adjustments.

Good strip edge
quality

In order to improve the side trimming process sustainably
the stored data can be screened with the help of theLong Term Viewer software. By identifying relationships
between trimming quality related to product and processparameters quality or process engineers can easily
determine improvement steps for the side trimming
process.

Warning due toinsufficient gap
Alarm due to knife
breakout
Warning due topartially worn knife

FEATURES• 0.3 – 7.5 mm strip thickness

Example of different strip edge situationss• Up to 750 m/min strip speed• Safe working distance up to 800 mm• Synchronization with knife circumference• Automatic knife breakouts detection• Cut ratio calculation• Measurement of burr

Primetals Technologies
Austria GmbHA joint venture of Mitsubishi Heavy
Industries and partners
Turmstrasse 44 | 4031 Linz | Austria
primetals.com
Order No. T10-4-N195-L2-P-V3-EN
Printed in Linz | © 2020

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