Who says “coupons” are just for grocery shopping. To provide the best cut quality from your cutting machine, it is wise to do a “cut test coupon” before using the machine on production parts. A rectangular shape with holes will provide you with your current machine’s cut quality. This test should be performed either every day or the beginning of each shift.
Use a Digital Micrometer like the one shown here.
Once this part is cut, the operator should use a calibrated digital micrometer (pictured above) to check the tolerances in both the X and Y axis on the coupon. Ideally, on a Hy Definition plasma system these should be at 5,000’s. If they are not, further investigation should be focused at torch level and or the motion on either axis.
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