Solid Carbide Thread Formers Boost Productivity and Quality

Walter USA’s Walter Prototyp Protodyn HSC thread former is a solid carbide tool engineered to boost thread forming cutting speed, productivity and tool life.

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Walter USA’s Walter Prototyp Protodyn HSC thread former is a solid carbide tool engineered to boost thread forming cutting speed, productivity and tool life.
 
The thread former provides a thread production process that creates no chips, bird nesting, or chip removal problems, yielding a high level of process reliability even for deep hole and through hole threads. It also has a micrograin carbide substrate that promotes both superior toughness and wear resistance, according to Walter. This substrate is mated with a hard multilayer TiCN coating that helps make the thread former suitable for use in all formable materials, such as steel, stainless steel and aluminum materials with an Si-content of less than 12 percent.
 
The geometry of the Protodyn HSC possesses a shank tolerance h6 for use in shrink-fit chucks, and its optimized polygonal form reduces friction and increases tool life, leading to fewer tool changes, the company says. Its new chamfer geometry promotes uniform wear. For deeper than normal threads – up to 4xD – the Protodyn (S) HSC version features axial internal coolant, with cutting speeds that are twice as high as an HSS thread former.