Accession Number:

ADA134073

Title:

An Evaluation of Automated Control of the Oxyfuel Cutting Process for M1 Vehicle Fabrication

Descriptive Note:

Final technical rept. 1 Jul 1982-30 Jun 1983

Corporate Author:

ARMY TANK-AUTOMOTIVE COMMAND WARREN MI

Personal Author(s):

Report Date:

1983-06-01

Pagination or Media Count:

109.0

Abstract:

Southwest Research Institute SwRI conducted a feasibility study to evaluate the oxyfuel gas cutting process. Specific objectives of the project were 1To isolate the parametersthat show potential for use as process control signals. 2To outline process control options from a relatively simple open loop control to a more sophisticated, fully automated, real-time closed loop control. The results of the feasibility study have shown that spectral radiancetemperature in the infrared range near the top and bottom of the cutting front could provide control signals to minimize gouging and slag formation. The results of the acoustic monitoring have demonstrated that a high frequency acoustic sensor on the torch could be used to detect abnormal tip torch behavior. Additionally, a high frequency sensor on the plate could be used to monitor gouging as well as excessive slag adhering conditions. However,since this method works after the fact i.e.,after gouging has initiated, the temperature monitoring method is considered more suitable. The experimental data, supported by the literature review, lead to the conclusion that the common denominators of all flame cutting problems are the temperature at the cutting front and the iron-oxygen mixture ratio. A real-time closed loop system is described in this report. The details of the feasibility study are provided in this report.

Subject Categories:

  • Fabrication Metallurgy
  • Machinery and Tools
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE