To make a hole in an operation and then sink it, the company (www.walt-tools s.com/us) introduced a new version of the original typ THG thread mill, with 90 anti-sinks. Mark Hemmerling says: “a lot of times, it’s expensive to have a step or a single reverse operation.” He said he was walter’s marketing director.
Other improvements include a wear resistant, solid carbon ultra-fine carbide substrate, a 27 spiral structure, at the time of cutting of various materials, have a shorter groove, used for effective chip evacuation, by cooling the H3 coolant and multi-layer coating layer, it is said that allow higher cutting speed and longer tool life. These tools can also be used and can generate threads from H4 to H16. These tools have an aggressive tilt Angle that can be as hard as 48 HRC materials.
In comparison with similar tools in the lab, the company reported that the use of the new THG thread mill was increased by 50% to 100%. For example, a car and racing company has applied this tool to the control arm of H3 thread diameter deep, which is made of 300 meters of steel and has a tensile strength of 217550 psi. In THG mill, the company implemented the cutting speed of 200-sfm and 0.0007 “per tooth of feed, and increased the number of linear cutting times from 80 to 145% over a period of time, an increase of 81%.
In another application, a contract manufacturer’s processing connection flanges, made from 6150 spring steel, have a tensile strength of 152,280 psi and a THG tool to cut the “-deep H10 line”. The processing parameters are 220 SFM and 0.0014 “each tooth”. The previous tool reduced 120 threads in a fixed amount of time, while TMC had 550 threads.
The company’s latest version of the TCS tool selection and cutting date software, version 10.3, contains optimized values for THG thread mill. Online software is available free of charge, and a tool based on application, artifact material and hardness is recommended. “It lets you know what tools can be used, as well as speed and feed, estimated tool life and the estimated cost of each part,” Hemmerling said. “We publish updates twice a year in conjunction with new product introductions.”