Cold Forming (rolling) threads in metal has been used in the United States for about 65 years. Originally developed in Germany the technology migrated to the US in the 1950’s. Initially used on multi spindle screw machines the tooling styles…
Read MoreRolling threads on various materials became a necessity in high volume manufacturing in the US following its discovery in Germany after the second world war. The most dramatic effect was in the production of spark plugs. In the US alone…
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