Product Advantages
Diverse Material System
Our primary materials include High-Speed Steel (HSS), Cobalt High-Speed Steel (M35/M42), Powder Metallurgy High-Speed Steel (HSS-E-PM), and Carbide. Among these, Carbide taps boast a hardness reaching HRC 89 and cutting speeds 4 to 5 times faster than those of HSS taps; when machining materials such as aluminum alloys, their tool life can extend to between 5,000 and 8,000 holes. Powder Metallurgy High-Speed Steel, characterized by its uniform and dense microstructure, offers 80% greater wear resistance compared to traditional materials, making it particularly well-suited for machining hardened steel, stainless steel, and high-temperature alloys.
Innovative Modular Design
Utilizing a patented interface to combine a carbide thread head with a steel shank, this design delivers both exceptional tool life and high cutting speeds. Following the adoption of this solution, a certain automotive supplier saw their cutting speed increase from 30 m/min to 40 m/min, while the service life of a single tap head skyrocketed from 9,500 holes to 225,000 holes, resulting in an overall production cost savings of 25%.
High-Performance Coatings
PVD coatings-such as TiN, TiCN, TiAlN, and CrN-significantly enhance wear resistance and reduce friction coefficients, thereby extending tool life by a factor of 3 to 8 times. The TiCN coating, in particular, combines high hardness with low-friction properties, making it exceptionally effective for tapping and thread-forming operations.
Diverse Flute Geometries
Straight-flute taps offer high versatility; spiral flutes facilitate chip evacuation in blind holes; and spiral-point taps are ideal for high-speed cutting in through-holes. Forming taps, which create threads through chipless plastic deformation, are suitable for ductile materials such as aluminum and copper, producing threads of superior strength.
Manufacturing Process
Powder Metallurgy Blank Preparation
Steel molten in a high-frequency induction furnace is atomized into powder using high-pressure gas jets, then sintered under high temperature and pressure to form a dense blank. This process eliminates carbide segregation and ensures a uniform microstructure, thereby significantly enhancing the tap's reliability and grindability.
Form Grinding
A 5-axis CNC tool grinder is utilized to precision-grind the helical flutes, cutting edges, and sizing sections. For select high-end taps, cutting-edge precision is controlled within ±0.005 mm, and thread tolerances can achieve ISO 3H/5H grades, meeting the rigorous demands of precision-critical sectors such as the automotive and aerospace industries.
Heat Treatment and Surface Treatment
Through specialized alloying designs and refined heat treatment processes, issues such as grinding burn and tip cracking are effectively resolved. Subsequently, the taps undergo PVD coating treatments-such as TiN and TiAlN-to further enhance their wear resistance and lubricity.
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