Crush Grinding

Nguyen, T. Q.

Honeywell FM&T, Kansas City, MO (United States)

关键词: Materials Working;    Tungsten Carbides;    Grinding;    42 Engineering;    Production;   

DOI  :  10.2172/885174
RP-ID  :  KCP-613-7032
RP-ID  :  AC04-76DP00613
RP-ID  :  885174

美国|英语

来源: UNT Digital Library

【 摘 要 】

Crush Grinding is a special process used at the Kansas City Plant to finish stem sections of reservoir products. In this process, a precise profile of the desired product is formed on a tungsten carbide roll. This roll slowly transfers a mirror image of the profile onto the grinding surface of a wheel. The transfer rate of the profile is between 0.001 and 0.010 inches per minute. Crush grinding is desirable since it provides consistent surface finishes and thin walls at a high production rate. In addition, it generates very sharp fillet radii. However, crush grinding is a complex process since many variables affect the final product. Therefore, the process requires more attention and knowledge beyond basic metal removal practices. While the Kansas City Plant began using these machines in 1995, a formal study regarding crush grinding has not been conducted there. In addition, very little literature is available in the grinding industry regarding this process. As a result, new engineers at the Kansas City Plant must learn the process through trial and error. The purpose of this document is to address this literature deficit while specifically promoting a better understanding of the stem crush grinding process at the Kansas City Plant.