Browse Prior Art Database

TAPERED MANDREL CONNECTION

IP.com Disclosure Number: IPCOM000027690D
Original Publication Date: 1998-Oct-31
Included in the Prior Art Database: 2004-Apr-08
Document File: 2 page(s) / 63K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a method of incorporating a conical taper at the mandrel connection of an electroforming setup. This configuration decreases amperage density at the contact. It also increases stability and centering.

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XEROX DISCLOSURE JOURNAL

TAPERED MANDREL CONNECTION I

Peter J. Schmitt William G. Herbert

Proposed Classification
U. S. CL 399/096 Int. CL G03g 15/00

J

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!

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12

-20

Disclosed is a method of incorporating a conical taper at the mandrel connection of an electroforming setup. This configuration decreases amperage density at the contact. It also increases stability and centering.

245

XEROX DISCLOSURE JOURNAL - Vol. 23, No. 5 September/October 1998

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TAPERED MANDREL CONNECTION (CONT'D)

Prior practice used a flat horizontal end of an electroformhg mandrel as the point of electrical connection. As the diameter of many new mandrels decrease, the cross sectional area of the connection decreases. Depending on, the amperage being used, there is a minimum area required so as not to overheat the connection. A tapered mandrel, as shown in the accompanying figure, is used so that enough surface is present. Since the taper is more precisely machined than the threaded section, stability increases and centering is improved.

In the accompanying figure, a threaded mandrel connection 10 connects to a conical taper 12 on a mandrel mount 14. A mandrel 20 then attaches to the mandrel mount 14.

DP5768

246 XEROX DISCLOSURE JOURNAL - Vol. 23, No. 5 September/October 1998

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