23.3 Lathes and Lathe Operations
v Metalworking lathes were first built in late 1970. The most common lathe originally was called
an engine lathe. Today, these lathes are all equipped with individual electric motors.
v The maximum spindle speed of lathes typically is around 4000 rpm but only about 200 rpm for
large lathes. For special applications, speeds may range to 10,000 rpm, 40,000 rpm, or higher.
v The cost of lathes ranges from about $2000 for bench types to over $100,000 for larger units