The clearance of the high speed punch is small. The total clearance of the high speed punch is 20% and 25% of the thickness of the raw materials. The concave and convex die alignment is not good, including die base, guide die parts, CNC punch inserts are not good precision, etc. The overheat of high speed punch is mainly due to the overtemperature of punch caused by long-term rolling with the same die. Improper mould grinding will result in quenching and mould wear. Part of one side punching machine, such as step punching machine, corner punching machine or cutting, the side force of the aluminum doors and Windows parts will make the punch to one side, the gap on this side will be reduced, causing more serious wear of the die sleeve. If the numerical control lathe die cover installation accuracy is not high, the punch will be more serious offset under the die, resulting in the punch and die cover damage. The waste side bounce-back will be caused by the die strip, and its related factors are: the greater the white balance of the die side, the greater the arc of the side, and the easier it is to cause the waste side bounce-back. Into the module of the die sleeve, the high speed punch into each small punch upper part of the module is certain, the module of the die sleeve is small, very easy to lead to waste rebound.

The way to avoid the mold sleeve stripping: with high speed milling machine special type of male mold hair loss material. Aluminum doors and Windows spare parts. The moulds are often sharpened and demagnetized. Enhance the integrated IC gap. Replace flat edge die with arc N die. Mold sleeve installation mold out machine. Effectively raise the mold sleeve channel modulus. In the face tissue cloth is very easy to open holes in the area, the wear of the die sleeve is not the same, some parts scratch big, wear fast, especially in the narrow rectangular frame die sleeve. The key reason of this problem: high-speed punch CNC punch design accuracy or production and processing accuracy is not enough, mainly because the upper and lower rotating table of the mold seat is not in the center. Die sleeve design scheme or accuracy is not up to the provisions. The accuracy of the guiding sleeve of the stamping die is insufficient. Improper selection of mold clearance. In order to avoid inconsistent wear of the die sleeve, you should: use the rest assured rod to regularly maintain and adjust the alignment of the tool table and the CNC lathe mounting seat.