As a tool maker for a few decades, I never know how a gold chain is made until I watched the following video clip. Thanks to the up loader! Watch carefully, the robot arms which are twisting the gold chains is actually similar to a multi-slide mechanism.
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Machining
How gold chains are made
Wet or dry in precision machining
The necessity of using cooling in the precision machining process is widely discussed among some machine tool manufacturers and machine tool users. Should it be dry or should it be wet? The high temperature created in high speed machining process will evaporate cutting coolants and cause chemical reaction, the disposal of the contaminated chips...
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