Arlington Heights, Illinois – Officials from Tungaloy Corp. introduce SH725, the new PVD grade for turning on Swiss lathes, and an expansion of toolholders for the DoMiniTurn external line, which has been well received in the market as an innovative tool for external machining.
When machining small parts on a Swiss lathe, an insert with a sharp cutting edge and low cutting force is essential. SH725 meets those requirements. Tungaloy developed this new coating technology to increase adhesion strength between the coated layer and the substrate, providing not only hardness but also sharpness on the cutting edge. As a result, SH725 features high wear resistance, a sharp cutting edge and improved chipping resistance.
In addition, toolholders have been expanded for the DoMiniTurn external line. This series features double-sided inserts with low cutting force, equivalent to positive inserts. The expansion includes external toolholders for V-style inserts (VXGU09…) suitable for under-cutting and profiling; neck-down type toolholders that prevent chips from jamming in the bushing during machining, allowing an easier finishing process; and 20mm x 20mm square shank toolholders applicable for automatic turret lathes.
The addition of SH725 and the expansion of toolholders for DoMiniTurn external line helps customers reduce tooling costs and increase productivity for a wide range of applications on most types of Swiss lathes.
Main features
- SH725: The PVD grade maintains a sharp edge with strong resistance to wear and chipping, improved surface quality, and extended tool life.
Toolholders for DoMiniTurn external line are expanded
- External toolholder for V style inserts (VXGU09…: Economical double-sided insert with four positive cutting edges) suitable for undercutting and profiling.
- Neck-down type toolholder where the cutting edge is offset from the guide bushing. In finishing operations where high quality surface finish is required, the workpiece stays in the guide bushing without chips jamming, allowing high precision turning.
- 20mm x 20mm square shank toolholder that expands the applicable range on automatic turret lathes
Source: Tungaloy America