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By registering for Machine Design now, you’ll not only gain access to premium content, you’ll also become part of an exclusive, robust global manufacturing engineering community! National Machine Tool specializes in providing high quality custom keyseat millers for customers with demanding applications. Our keyseat millers are the cost effective and faster alternative to EDM and broaching processes, and can work in both open end and blind bores. We offer millers in a range of sizes to produce bore diameters from . We manufacture attachments for use with manual equipment as well as horizontal and vertical CNC machining centers.
Relief holes are not needed for the operation of our tools. For over 100 years, we at National Machine Tool have provided custom cutting solutions to meet the slotting requirements of customers in industries including food processing, pump manufacturing, automotive, aerospace, power transmission, lumber, and musical instruments. Our milling equipment has been reliably used for a myriad of applications including gears, impellers, couplings, blowers, motor shafts, pump sleeves, and valves among many others. The concept exists in almost all engineering disciplines, but the implementation differs widely depending on the manufacturing technology. DFM will allow potential problems to be fixed in the design phase which is the least expensive place to address them. Other factors may affect the manufacturability such as the type of raw material, the form of the raw material, dimensional tolerances, and secondary processing such as finishing.
Depending on various types of manufacturing processes there are set guidelines for DFM practices. These DFM guidelines help to precisely define various tolerances, rules and common manufacturing checks related to DFM. DFM leads to a set of design guidelines that attempt to ensure manufacturability. By doing so, probable production problems may be addressed during the design stage.