Better Thread Gaging: forming taps rearrange the metal in the hole to create the thread. This is especially true for materials that work-harden such as steel and stainless steel. Stronger Threads: the grain flow of formed threads follows the contour of the thread, resulting in greater thread strength.Making threads without chips produces excellent thread surface quality, eliminates the risk of poor threads due to axial “mis-cutting”, increases static and dynamic strength of threads and allows elevated tapping speeds. Chip-less Tapping: since threads are formed and not cut, there are no chips to interfere with the tapping process or cause chip-removal problems in blind holes.However, suitable materials react to form tapping in different ways. Tapping via form tapping is appropriate for materials with tensile strength less than 1,200 N/mm 2 and fracture strain of 5 percent or less.Īs a rule of thumb, if a continuous chip is created when drilling, then the material is likely malleable enough and a good candidate for form tapping the threads. This larger hole is generated to allow room for the material to flow to create the minor diameter of the thread.įorm tapping is typically used in steels, stainless steels, light metal alloys and non-ferrous materials. One thing to really keep in mind is that form tapping requires a larger drill than a typical drill size for a cut tap. Roll form tapping has several benefits over cut tapping such as faster cutting speeds, stronger threads, no chips generated, stronger tap and longer tool life. Form tapping, also known as Roll Form tapping, is typically used in applications where traditional cut tapping is unsuitable.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |