Technical analysis of hard skiving processing

With the development of machines, tools and other integrated technologies, from the 1980s, domestic and foreign enterprises have gradually adopted as scraping hardened hardened gear (40 ~ 65hrc) of semi-intensive, finishing methods. This method can process any helix angle, modulus 1 ~ 40mm gear. Ordinary precision (6 to 7) hardened gear, generally use the “roll – Heat treatment – scraping” technology, roughing and finishing can be completed on the same hobbing; tooth surface roughness higher gear, you can scrape after honing processing arrangements; for high-precision gears, the use of “rolling – heat treatment – scraping – milling” process, used for semi-finishing operations scraping replace kibble, removal of heat deformation gear, leaving small and uniform margin conduct grinding, grinding work can save 1 / 2-5 / 6, very significant economic benefits. For hardened gear modulus big, large diameter, large width, because there was no corresponding large grinding machine, generally only use scraping process.