Inspection & Testing of CNC Metal Cutting Machine Tools - IMTMA/M004

Programme Background

CNC Machines are deployed in diverse range of manufacturing industries. Users need to test Machine tools at the time of purchase and also periodically during its use and operation. Periodic assessment of a machine tool is of paramount importance to sustain geometrical, functional & machine accuracy capabilities in order to prevent unexpected breakdowns. Evaluation needs to be done in accordance with international standards & procedures which can be broadly categorized into three areas, mainly geometrical alignment test, functional & machine accuracy capabilities. Conventional testing methods of machine tools are limited essentially to static measurement of geometrical machine structures under 'no load' conditions. However the performance of a Machine tool is evaluated in terms of compliance to tolerances, surface finish of components and so on. These are essentially determined by static & working accuracy of machine movements. A proper knowledge of static & working test, positioning & repeatability test, cutting trials on standard work piece will helps users in assessing the capability of the machine.

Focus Areas

Review of terminology
Geometrical testing of CNC Machine tools
Static tests – machine alignment testing using test charts
Working tests : Load test, NAS test, Circularity by ball bar
Positioning & Repeatability test – Laser testing
Interpreting test charts and corrective actions
Sources of errors and their rectification
Vibration & Noise
Cutting trials on standard work piece
Machine acceptance with process capability
Discussion about specific problems faced in industries reg. machine accuracy, testing and calibration

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The need for Productivity Institute

Is your work place suffering from poor productivity?
Do you feel that supervision is weak on the shop floor?
Do your shop floor personnel find it difficult to achieve targets?
You have the machine in place, but not the men to optimize usage?

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The rapid growth of Indian machine tool Industry and the increasing sophistication of machine tool has created the need for a new breed of machine tool technologists.

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