Flat broach manufacturing involves grinding gullets and OD forms from a solid blank. Flat broach sizes are usually up to 36" (914 mm) long and 12" (305 mm) wide. Maximum size depends on machine configuration. Shear angles are from 0 to 45 degrees. Rake angles range from 0 to 20 degrees. CNC grinding produces an accurate tooth profile and proper tooth heights, improving broach performance and part tolerance.
Machine Features and Benefits
- Available on the Huffman series grinding systems. For larger parts, models determined by part size.
- Grinding from a hardened solid blank replaces the old method of pre-milling, heat treating and then sharpening for dramatically increased broach throughput.
- High pressure flood coolant minimizes heat induced stress.
- CNC resharpening removes a controlled amount from each tooth, extends broach life and insures even tooth wear.
- Probing can be used for determining broach location in either a manufacturing or regrind application. For regrinding only, the probe is used for determining the first tooth location and for verifying the pitch spacing.
- An optional swiveling magnetic chuck is available for regrinding broaches having corner radii, chamfers or side geometry.
- Optional fixtures are available for regrinding window broaches.
- Integrated wheel truing available as an option.