Materials and Processes in Manufacturing

E. Paul DeGarmo, J T. Black, Ronald A. Kohser

Chapter 27 Abrasive Machining Processes

Specific Power in Grinding

The specific power needed for material removal processes is a useful quantity. It can be used to estimate machine power requirements and machining forces as discussed in Chapter 21. Specific power can also be used to describe grinding processes.

The value of specific power in grinding is expected to be greater than in large scale chip formation machining processes. This larger value is due to the large effects of friction and negative rake angle in grinding chip formation as shown in Figure 27-4.

The exercise is intended to show the relative magnitudes of unit power for large chip machining processes and grinding. It involves determining the specific power for a grinding process.

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© 2002 by Barney E. Klamecki. All rights reserved