IP Library › Granted Patent US 10,005,144
Granted Patent B2
US 10,005,144 · App. 15/601,392 · Granted Jun 26, 2018

Broach tool rake face with a tailored surface topography

Inventors: Tahany I. El-Wardany (Bloomfield, CT); Wayde R. Schmidt (Pomfret Center, CT)
Assignee: United Technologies Corporation
B23D43/02B23P15/42B23D2043/025B23F21/24B23F21/26Y10T407/16
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Quick Facts
Patent No.
US 10,005,144
App. No.
15/601,392
Granted
Jun 26, 2018
Kind
B2
Abstract

A broach tool includes a broach tool rake face with a tailored surface topography.

Claims (7)

1. A broach tool comprising:

a broach tool rake face with a tailored surface topography,

wherein the tailored surface topography includes a combination of depressed wells, microchannels, grooves, pockets, dimples, pyramids and ovals formed in the broach tool rake face that control a coefficient of friction between the broach tool rake face and a workpiece.

2. The broach tool as recited in claim 1 , wherein said tailored surface topography is formed by a laser surface treatment.

3. The broach tool as recited in claim 1 , wherein said tailored surface topography is formed by laser texturing.

4. The broach tool as recited in claim 1 , wherein said tailored surface topography is formed by Electrical-Discharge Machining.

5. The broach tool as recited in claim 1 , wherein the broach tool is configured to machine a fir-tree slot in the workpiece.

Assignments (4)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE AND REMOVE PATENT APPLICATION NUMBER 11886281 AND ADD PATENT APPLICATION NUMBER 14846874. TO CORRECT THE RECEIVING PARTY ADDRESS PREVIOUSLY RECORDED AT REEL: 054062 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF ADDRESS. Recorded Mar 4, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 055659/0001 →
CHANGE OF NAME Recorded Sep 4, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 054062/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 22, 2017
From: EL-WARDANY, TAHANY I.; SCHMIDT, WAYDE R.
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 042457/0388 →
Continuity (3)
Division 14200853 · Mar 7, 2014
Provisional Application 61775128 · Mar 8, 2013
Related Publication 20170252840A1 · Sep 7, 2017
Cited By (1)
US 12,280,434