Unit 01 The Roles of Engineers in Manufacturing课件.ppt

Unit 1 The Roles of Engineers in Manufacturing 亭藉的赠淫估下整凿膊捌最鲍砸器遮霓黎崔腮裳皂搪臻净蜂喇美碧耍缕均Unit 01 The Roles of Engineers in Manufacturing课件Unit 01 The Roles of Engineers in Manufacturing课件 1 Unit 1 The Roles of Engineers in Manufacturing Many engineers have as their function the designing of products that are to be brought into reality through the processing or fabrication of materials. In this capacity they are a key factor in the material selection-manufacturing procedure . A design engineer, better than any other person, should know what he or she wants a design to accomplish. He knows what assumptions he has made about service loads and requirements, what service environment the product must withstand, and what appearance he wants the final product to have. In order to meet these requirements he must select and specify the material(s) to be used. In most cases, in order to utilize the material and to enable the product to have the desired form, he knows that certain manufacturing processes will have to be employed. In many instances, the selection of a specific material may dictate what processing must be used. At the same time, when certain processes are to be used, the design may have to be modified in order for the process to be utilized effectively and economically. Certain dimensional tolerances can dictate the processing. In any case, in the sequence of converting the design into reality, such decisions must be made by someone. In most instances they can be made most effectively at the design stage by the designer if he has a reasonably adequate knowledge concerning materials and manufacturing processes. 佰旬毡押超葡帽多懂都投嘎锭踢重枚迭楔澎胁流燃渠殷虎揖龚搁劳烛掳夹Unit 01 The Roles of Engineers in Manufacturing课件Unit 01 The Roles of Engineers in Manufacturing课件 2 Otherwise, decisions may be made that will detract from the effectiveness of the product, or the product may be needlessly costly. It is thus apparent that design engineers are a vital factor in the manufacturing proce