The effect of five design and three operating variables on three different drill temperature responses is investigated. A total of 512 observations was made using a replicated two-level factorial design. Problems associated with the selection of the temperature responses are studied including the transient nature of the response, the location of the thermocouple, and the interrelationship of the workpiece volume and drill wear. The five drill design variables are web thickness at point, margin width, relative lip height, helix angle, and surface condition, of which the helix angle and web thickness at point had the most significance within the experimental range. The effect of two-factor interactions was also discussed.
Evaluation of the Effects of Design Variables on Drill Temperature Responses
M. F. DeVries,
M. F. DeVries
Department of Mechanical Engineering, The University of Wisconsin, Madison, Wis.
S. M. Wu
Department of Mechanical Engineering and Department of Statistics, The University of Wisconsin, Madison, Wis.
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DeVries, M. F., and Wu, S. M. (August 1, 1970). "Evaluation of the Effects of Design Variables on Drill Temperature Responses." ASME. J. Eng. Ind. August 1970; 92(3): 699–705. https://doi.org/10.1115/1.3427833
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