Tap process for hard workpieces
AssigneeKennametal Inc.
InventorsRalph W. Hughes, Jr., Troy F. Walters
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Abstract
A process and apparatus for producing screw threads in hard material workpieces with a series of taps. The present invention employs a threaded bore formed in a bracket assembly to align and position multiple taps on a rotary machine. The taps are used in sequence to cut threads progressively deeper into a substrate. The present invention provides a method of aligning and orienting each progressive tap to begin its cut at the same initial starting point.
Claims5
A method of aligning tools in a chuck using an alignment assembly, said alignment assembly including a support block having a central longitudinal axis, said support block having a key and said support block adapted to receive said chuck, said alignment assembly having a bracket axially adjustable with respect to said support block wherein said method of aligning comprises:
- placing said chuck in said support block, aligning a first threaded tap in said alignment assembly wherein said aligning includes threading said first tap into a threaded first bore on said bracket, wherein the pitch and geometry of the threads of the threaded first bore are nearly identical to the internal thread desired to be formed in a substrate, and locking said first tap to said chuck.
Dependencies are inferred from the claim text.