Molybdenum Drilling, Tapping and Threading
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- Category: Molybdenum knowledge
- Published on 17 September 2013
- Written by 陈桂兰
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Molybdenum can be drilled with high speed steel drills. However, carbide drills are recommended for deep drilling. When using high speed steel drills, the speed should be 30 to 50 feet per minute with a feed of .003 i.p.r. Cutting oils should be used for all tapping, drilling and threading operations. When threading the thread depth should not be more than 50 to 60 percent because molybdenum tends to chip, Molybdenum can be rolled treaded. The molybdenum material and the die should be heated to approximately 325 degrees F. Molybdenum can be heated to 325 degrees F in air without the danger of oxidation. However, molybdenum must not he heated to temperatures above 500 degrees F except in hydrogen or other protective atmospheres.
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