【文章內(nèi)容簡(jiǎn)介】 stances specified in the design,usually for a series of such functions must be taken into ,to correct purposes,we should recognize that,in many cases the 5 design of important design considerations are not calculated or test can determine the ponents or students,wheen in need to make important decisions in the design and conduct of any operation that can not be the case,they are often are not special,they occur every day,imagine,for example,a medical laboratory in the mechanical design,from marketing perspective,people have high expectations from the strength and relevance of ,and heavy parts installed together:to produce a solid impression sometimes machinery and spare parts from the design style is the point and not the other point of purpose is to make those you do not be misled to believe that every design decision will need reasonable mathematical methods. Manufacturing refers to the raw meterials into finished products in the three distinct are:input,processing first phase includes the production of all products in line with market needs there must be the demand for the product,the necessary materials,while also needs such as energy,time,human knowledge and technology resourcess . Finall,the need for funds to obtain all the other resources. Lose one stage after the second phase of the resources of the processes to be of raw materials into finished products of these plete the design,based on the design,and then develop implemented through various production of resources and processes to ensure efficiency and example,we must carefully manage resources to ensure proper use of ,people are talking about the product market was is the final stage of exporting finished or finished just purchased,it must be delivered to the to product performance,installation and may have to conduct further debugging in addition,some products,especially those very plex products User training is necessary. processes of materials and maunfacturing Here said engineering materials into two main categories:metals and nonferrous,highperformance alloys and power futher divided into plastice,synthetic rubber,posite materials and said the production 6 proccess is divided into several major process,includingshape,fing,casting/ founding,heat treatment,fixed/connections ,measurement/ quality control and materal processes can be further divide into each other’s stages of the development of the manufacturing industry Over the years,the manufacturing process has four distinct stages of development, despite the stages are:The first phase is artisanal,the second Phase is third phase is automation the forth Phase is integrated. When mankind initial processing of raw materials into finished products will be,they use manual with their hands and what are the tools manuslly is totally integrated production take person needs indentification,collection materials,the design of a product to meet that demand,the production of such products and use beginning to end,everything is focused on doing the work of the human in the industrial revolution introduced mechanized production process,people began to use machines to plete the work acplished previously manual. This led to the in turn reduce the manufacture of integrated this stage of development,manufacturing workers can see their production as a whole represent a specific piece of the part of the production can not say that their work is how to cope with the entire production process,or how they were loaded onto a production of parts of manufacting processes is the next phase of the selection process is a putercontrolled machinery and this stage,automation island began to emerge in the workshop island represents a clear production process or a group of these automated isolated island within the island did raise the productivity of indivdual processes,but the overall productivity are often not is because the island is not caught in other automated production process middle,but not synchronous with them .The ultimate result is the efficient working fast parked through automated processes,but is part of the stagnation in wages down,causing better understand this problem,you can imagine the traffic in the peak driving a red light from the red Service Department to