相关文档

• 114_试卷试题(1).doc

  Text 1The relative severity of various machining operations is defined as the magnitude temperatures and forces encountered the tendency for built-up edge formation, and the ease with which chips ar

• 114_试卷试题.doc

  Text 1Metals are found everywhere in our life They are classified into two categories, “ferrous” and “non-ferrous” metals Ferrous means relating to, or containing iron and non-ferrous means having n

• 124_试卷试题(1).doc

  Text 1A mill is versatile machine tool which is useful for machining the rough surface of a work piece flat and smooth and for shaping them with slots, and holes The work piece is held by a vise on

• 111_试卷试题(1).doc

  Text 1The selection of a cutting fluid should also include considerations such as its potential effect on workpiece material and machine tools, biological factors, and environmental factorsBiologica

• 116_试卷试题(1).doc

  Text 1Four general types of cutting fluids aremonly used in machining operations: oils, emulsions, semisynthetics, and syntheticsOils maintain high film strength on the surface of a metal, as we

• 113_试卷试题(1).doc

  Text 1In addition to being familiar with the mechanicalponents, to be an effective engineer one should also have some hands-on experience with the machine tools and machining technique that one

• 118_试卷试题(1).doc

  Text 1Copper (Cu), first produced in about 4000 BC, and its alloy have properties somewhat similar to those of aluminum and its alloys In addition, they are among the best conductors of electricity

• 104_试卷试题(1).doc

  Text 1Financial record-keeping is very important to manufacturingpaniesThe main objective of a manufacturingpany is to make a profit on the product they produce and sell The finance departme

• 112_试卷试题(1).doc

  Text 1Copper (Cu), first produced in about 4000 BC, and its alloy have properties somewhat similar to those of aluminum and its alloys In addition, they are among the best conductors of electricity

• 117_试卷试题(1).doc

  Text 1Four general types of cutting fluids aremonly used in machining operations: oils, emulsions, semisynthetics, and syntheticsAn emulsion is admixture of two immiscible liquids (usually of oi