Followup on Use of Numerically Controlled Equipment To Improve Defense Plant Productivity

LCD-78-427: Published: Jan 17, 1979. Publicly Released: Jan 17, 1979.

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The Department of Defense (DOD) owns $336 million worth of numerically controlled equipment, such as drills, lathes, and machining centers. This equipment, controlled automatically by computers or punched tape, is particularly expensive and complex. Although conventional equipment is more appropriate for many applications, numerically controlled equipment offers increases in productivity and savings, particularly for a small lot production. Also, depending on its management and application, numerically controlled equipment can improve Defense plant surge capability for emergencies. On the other hand, unless management closely monitors this capability, it may not function as intended during a mobilization buildup. Two prior GAO audits analyzed Defense-owned numerically controlled equipment. This followup report was made to assess what DOD had done to improve its use and management of numerically controlled equipment.

GAO briefly examined selected subjects covered in its earlier reports at several activities. Standardization continues to be a problem and is approached differently by different commands and activities. Work interchange between activities has not occurred except for a few work orders. Air Force activities employ formal work-mix study techniques to identify equipment needs, whereas others buy equipment because of production bottlenecks or deteriorated machines, sometimes without critically evaluating numerically controlled machines. Management information systems are extremely diverse in terms of usage categories recorded, and some systems are inaccurate and inadequate. Systems for workloading parts onto conventional or numerically controlled machines need improvements. Most shops have given priority to numerically controlled machine repair part acquisition. However, procedures could still be more streamlined.

Recommendation for Executive Action

  1. Status: Closed

    Comments: Please call 202/512-6100 for additional information.

    Recommendation: The Secretary of Defense should activate a Department of Defense or combined-service group or assign to an existing group the responsibility to provide overall technical and policy direction and coordination for numerically controlled equipment. The group should periodically provide status reports of its progress and problems. The Secretary should require the group to address the areas suggested in GAO 1974 and 1975 reports.

    Agency Affected:

 

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