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US 5,203,122 AGranted
Method of grinding titanium
AssigneeUnited Technologies Corporation
InventorJames D. Campbell
Life of this patent
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Abstract
This invention relates to the grinding of titanium alloys and particularly to the grinding of titanium alloys using electroplated synthetic diamond wheels with surface speeds in excess of 2290 surface meters per minute. Other operating parameters are defined which permit the effective grinding of titanium at high rates and which produce desirable residual surface compressive stresses in the surface of the ground article.
Claims2
Method of grinding a titanium workpiece including the steps of:
- a. using an electroplated single layer grinding wheel;
- b. rotating the electroplated grinding wheel to produce a surface speed of 38-66 m per second;
- c. causing the wheel to interact with the workpiece to cause a depth of cut of at least 0.05 mm;
- d. causing relative velocity between the grinding wheel and the workpiece of at least 0.5 mm per second with the combination of wheel surface speed, depth of cut and relative velocity between the wheel and workpiece resulting in an amount of material removed per pass;
- e. coordinating grinding condition such that the depth of cut and relative workpiece velocity fall within an area bounded by line Y.ltoreq.-0.1875.times.+3.28;
- f. providing a lubricant/coolant selected from a group consisting of hydrotreated petroleum containing chlorinated paraffin and synthetic soluble oil-water emulsions.
3 more elements
Dependencies are inferred from the claim text.