International Association of Penturners - View Single Post - turning metals (copper,alum,brass)
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Old 10-10-2018, 08:40 AM   #7 (permalink)
thewishman
 
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This is a good description from www.corrosionpedia.com:


Definition - What does Free Machining mean?
Free machining is a manufacturing process in which additives are used to improve a metal's machinability. It is a characteristic of a metal alloy, when subjected to machining operations that:

Consumes less power
Gives better surface finish
Produces small metal chips
Results in longer tool life
Free machining materials can be cut quickly, easily obtain a good finish and do not wear tooling down as much as other processes.

There is a big difference between 360 and 260 brass. The 360 cuts and and machines much more easily.
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