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In the real time world of contract manufacturing, picture your company landing a contract to produce 80,000 threaded stainless-steel connectors. The specified thread detail calls out a class 3 aviation thread. You could choose to single point, chase, or roll…

The earliest form of producing a rolled thread came from a technique called bump rolling. This utilized a single roll that pressed the form into the material with side pressure. While it was the original approach to rolling threads it…

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…

Rolling 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…

Roll Form Tapping can increase the tensile strength of an internal thread up to twice the tensile strength of a cut thread. Carbide taps will decrease the cycle time required to thread by at least a factor of two. Fette…

Machining Aluminum can be most cost effective with PCD inserts, however, insert cost is very high. Most Aluminum is milled and turned with carbide inserts honed for sharpness and polished to aid in chip flow. The best of both worlds…

The mechanical characteristics of many materials can make them difficult to thread using traditional cutting technologies. Chip control and work hardening can be an obstacle to efficient machining. Cold thread forming (thread rolling) often can be used to efficiently improve…

The long-term performance of a thread rolling tool is directly related to wear of the spindles, bearings, backing plate and face plate of the rolling head. Wear of any or all these components will manifest initially in pronounced taper of…

Roll threading with a threading head on a Hydromat transfer machine required modification of the operating station of the machine to include an operating trigger mechanism to trip the threading attachment once it was in the correct position to thread.…

What you want/need to know Sintered carbide was discovered in the early 1920’s in Essen Germany as a resultant of a furnace explosion at the Krupp Iron and Steel Works. It was developed and played an important role in German…