Accession Number:

AD0729086

Title:

An Indicator Instrument for Determination When to Change a Bit from the Wear of Its Protective Coating,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1971-07-01

Pagination or Media Count:

9.0

Abstract:

The indicator comprises a bridge circuit which compares the feed and speed of the drill in order to estaglish bit wear. The paper features circuit diagram and mathematical expressions for balanced conditions.

Subject Categories:

  • Machinery and Tools

Distribution Statement:

APPROVED FOR PUBLIC RELEASE