Punch punching methods usually have a single punch and nibbling two ways
发布时间：2017-11-22
When machining a large hole with a small mold, it is common to form continuous tracks with overlapping punched holes to envelop the machined outline of the desired shape, and then take it out (when blanking) or discard (when machining holes) On the red material, to achieve the purpose of processing, which is a relatively simple and easy to implement
