Walter is introducing a new Tiger-tec Gold WSM37G grade for its thread-milling tools. Like the proven Tiger-tec Gold milling grades, the latest thread-milling grade incorporates a unique layer structure that consists of a carbide substrate with a wear-resistant TiAlN layer and a high-performance multi-layer aluminium oxide layer (Al2O3), which delivers superior temperature resistance.
The finishing touch to this new coating is the gold-coloured ZrN top layer which reduces friction and enables the machine shop to easily indicate any tool wear. Walter cites significantly higher cutting parameters and longer tool edge life as just some of the advantages for the end user. In some of the tests undertaken, the grade has increased tool life by up to 100% with far fewer radius corrections. In addition, the grade offers maximum productivity when used in conjunction with multi-row thread-milling cutters.
With the Tiger-tec Gold WSM37G grade, Walter is setting a new benchmark in the production of standard-compliant blind-hole and through-hole threads. Compatible with all Walter thread milling cutters, the new grade can be used universally with all ISO materials from P, M, K, N, S and H up to 55HRc, from a nominal diameter of 16mm or UNC¾.
The indexable inserts incorporate chip breakers specially developed for thread milling with two proven geometries — the universal D67 for maximum tool life and machining threads in high quantities, and the D61 which has an anti-vibration land, which guarantees excellent operational smoothness even in difficult conditions such as extended tool projection lengths. Walter’s new Tiger·tec Gold WSM37G grade further demonstrates the company’s innovation prowess in thread milling technology.