Metal-Working Drilling Tools TRIZ Cases
- Planar Rake Fluted Drill Bit for Better Chip Removal
Planar cutting faces with helical flutes improve chip removal and cutting efficiency while keeping drill bits manufacturable from cylindrical stock.
- Stainless Self-Drilling Screw Cold Forming Without Heat Treatment
Multi-stage cold forming work-hardens a stainless self-drilling screw, enabling steel-sheet penetration without heat treatment or bimetallic construction.
- Stainless Self-Drilling Screw Preforming for Thick Steel Penetration
Contour-edge preforming and cold work hardening let a stainless self-drilling screw penetrate steel sheets over 1.5 mm without heat treatment.
- Rotary Swaging Cam Tool for Precise Helical Outer Contours
A multi-stage cam tool forms precise helical outer contours by rotary swaging, cutting cost and avoiding separate strengthening steps.