Page 102 - CITS - Fitter Trade Practical - Volume -2

FITTER - CITS

Heat Treatment:
• Plan the heat treatment process based on the material composition, desired mechanical properties, and
specific requirements of the drawing tool.
• Preheat the drawing tool to a uniform temperature using ovens or furnaces to facilitate the heat treatment
process.
• Perform the primary heat treatment operation, such as quenching, annealing, or tempering, according to the
recommended temperature and time parameters specified for the chosen material.

• Monitor the heat treatment process closely using thermocouples, pyrometers, or temperature controllers to
ensure uniform heating and cooling rates throughout the tool.

Finish Machining:
• Transition to finer cutting tools such as ball mills, reamers, or broaches to achieve the final dimensions and
surface finish of critical features.
• Implement multi-axis machining strategies, including contouring, profiling, and finishing passes, to ensure
geometric accuracy and surface integrity.
• Employ high-precision measuring instruments such as dial indicators, bore gauges, and surface profilometers
to verify dimensional accuracy and surface quality during machining.

• Implement corrective actions such as tool offsets or toolpath adjustments to address any deviations from the
desired specifications detected during machining.

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CITS : C G & M - Fitter - Exercise 68