Answer :
Final answer :
Pre Machining involves removing some extended micro rough areas from the workpiece that are undesirable for advanced manufacturing processes.
What is pre-machining? What three different machining processes are there?
Roughing operations are used to quickly remove huge amounts of material and create parts with geometry that closely resembles the desired shape. Following roughing, a finishing procedure is utilised to get the desired final geometry and surface finish.
Turning, drilling, and milling are the three main machining operations. Shape-changing, planing, drilling, broaching, and sawing are additional processes that fall under the umbrella term "other operations."
Explanation :
Because of its superior surface smoothness and low dimensional inaccuracy, pre-machining is essentially beneficial and desirable for any advanced manufacturing processes.
For instance:
If pre-shaping is not done in EDM (Electric discharge machining), there may be chances of arcing in the material removal zone. Hence that results in inaccurately measured dimensions.
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