摘要:

Thread rolling is a generally accepted alternative to cutting for the production of small threaded piece parts such as BA screws and self-tappers. Yet the wider uses of thread rolling have been neglected by production engineers over the years.In this article, Walter H Froehlich describes how the modern two-roll thread rolling machine can produce practically any thread form, including serrations and knurls, in a wide range of sizes on such items as valve stems, lead and ball screws, worms and taps.

DOI:10.1049/tpe.1979.0033

出版商:IEE    

年代:1979

数据来源: IET

DOI:10.1049/tpe.1979.0035

出版商:IEE    

年代:1979

数据来源: IET

DOI:10.1049/tpe.1979.0036

出版商:IEE    

年代:1979

数据来源: IET

DOI:10.1049/tpe.1979.0037

出版商:IEE    

年代:1979

数据来源: IET

摘要:

Drill manufacturers have been making impressive claims for the new generation of high-speed drills. Production Engineer takes a look at Sandvik Coromant's new U-Drill and gives exclusive details of Kennametal's new agreement to market Metcut drills outside the U.S.A

DOI:10.1049/tpe.1979.0038

出版商:IEE    

年代:1979

数据来源: IET

DOI:10.1049/tpe.1979.0039

出版商:IEE    

年代:1979

数据来源: IET