Conventional Lathe Specification – In order to specify a lathe, a number of parameters could be used based on the specific application. However, the major elements used for specification should invariably be based on the components that would be manufactured in the lathe.
Thus, the following are the basic elements generally specified for the capability of the lathe machine –
Distance between centres – This would be specifying the maximum length of the job that can be turned in the lathe.
Swing over the bed – This specifies the maximum diameter of the job that can be turned in the lathe machine, generally restricted to small-length jobs.
Swing over the cross slide – This specifies the maximum diameter of the job that can be turned in the lathe machine with the job across the cross slide, which is often the more general case.
Though the above gives the basic capacity of the machine, there are a number of other factors that should also be specified to fully describe the lathe machine. They are –
Horsepower of the motor
Screw cutting capacity
Accuracy achievable Spindle
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