A Study on Optimal Selection of the Impregnated Diamond Bits With Multifactor prependicular Experimental Method

The main physico-mechanical properties of the typical ocks in western Henan were tested in the research,then determined the indices for bit strength of wear and drilling speed by the microbit simulated drilling test, proposed methods for optimal selection of design parameters of impregnated diamond bits on the basis of perpendicular analysis and comprehensive evaluation.