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Churn-drill performance
Bit wear-flat temperature as a function of depth of cut and speed
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Published Year
1940-1949 (1)
1980-1989 (1)
Subject
Rock-drills--Testing (2) *
Boring (1)
Quarries and quarrying--Equipment and supplies--Testing (1)
Sandstone (1)
Author
Hanson, Bruce D. (1)
Lintner, E. J. (1)
Thoenen, J. R. (1)
Wingquist, Carl F. (1)