Magnetic holding pattern: This pattern maker uses magnetic workholding to secure parts for machining that traditionally aren't held by the 'invisible' clamping method. The technique it uses also allows it to repeatedly position a part in any one of i

摘要

Sometimes while solving one problem, a solution to another dilemma serendipitously appears. That was recently the case for Anderson Pattern, in Muskegon Heights, Michigan. According to Mark Nielsen, machining manager, the more than 70-year-old pattern andmoldmaking company began its journey to lean manufacturing 3/2 years ago. Since setup time reduction is central to any lean push, the company decided to switch from traditional mechanical workholding clamps to electropermanent magnetic milling chucks to hold billets and castings in its various vertical and horizontal machining centers, Its goals were similar to other shops that have integrated magnetic workholding-quicker change-overs, better repeatability and more spindle uptime thanks to access to up to five sides of a part in one setup.