Nobur® JA Replaces Expensive and Time-Consuming Secondary Operations

Automatic Recessing tool pays for itself in two weeks as cutting and welding operations are eliminated

MANUFACTURER OF SPECIAL COMPONENTS was producing a frame for a motion picture camera. The frame features tubes that slide together and must be fastened. They needed to countersink holes inside each end of a six-foot long tube to allow a screw head to be recessed below the tube ID. They were cutting a section of the tube out, countersinking it, then welding it back into place. The customer does about 100-200 parts per month. These processes were very costly and time-consuming. With the Nobur® JA Automatic Recessing tool from Cogsdill, the customer can perform the countersinking operations inside the tube without cutting the tube open.

The tool runs in a drill bushing, with the tube mounted in a special custom fixture.
The tool paid for itself by the second week of production. The customer is very
happy, first for finding Cogsdill on the Internet, and then for Cogsdill's help in achieving great results and lower costs with the Nobur JA Automatic Recessing tool.

Machining Data

Machine type-----Drill press

Coolant------------Thin machine oil
Tool type ----------Nobur JA
Size required -----.490 in. (12.45mm) dia.
Material type-----303 stainless steel tube (82º countersink)
Spindle speed ----300 RPM
Size achieved -----As required
Feed rate ----------.003 IPR (.076 mm/rev)
Finish required --Smooth and chatter-free
Cycle time --------1 minute

Finish achieved --As required

Cogsdill Tool Products offers a wide array of standard tooling and a broad range of solutions for burnishing including: Standard Roll-a-Finish tools for IDs and ODs; Special designs for tapers, faces and contours; Single-roll and diamond tools for ODs, large IDs, faces, tapers, contours, and irregular surfaces; CX external burnishing machines for shafts or cylindrical surfaces of any length. Parts are sized, finished, and work-hardened in seconds! Refer to our catalog no. 500, Burnishing Tools and Machines, for more information.

In 1914 Stuart A. Cogsdill set up shop in Detroit as a cutting tool regrinding and repair service. He soon began designing and manufacturing special tools for early automotive pioneers such as Henry Ford and the Dodge brothers. Today Cogsdill Tool still offers its 21st century customers the same commitment that inspired its founder: We will develop and build innovative tooling solutions for your tough manufacturing problems. Cogsdill has two operating units, one in the United
States and one in the United Kingdom:


Public Relations:

Fred Ogburn Corporate Communications Manager, USA

(803)438-4000 ext 218

Company Information:

Name: Cogsdill Tool Products, Inc.

Address: P.O. Box 7007-TR

City: Camden

State: SC

ZIP: 29020 7007

Country: USA

Phone: 803-438-4000

FAX: 803-438-5263

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