Abstract
Thermoelectric modeling is based on the profound physical analogy between heat conduction and current flow in various media. In developing the equivalent circuit, steady machining is assumed (constant spindle speed and cutter feed). That corresponds to a dc circuit. Since the current from a source is constant in any circuit conditions, a current source is used in the circuit, rather than an emf. The integral current source in the equivalent circuit corresponds to a set of thermal components. In this approach, the system consisting of the workpiece, the cutting insert, the tool holder, and the machine-tool housing may be regarded as an element in the block diagram of the thermodynamic control system for the turning of any material.
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