Design Materials and Production
The cost of the product depends on raw materials ,production costs for machines and labors ,management and sales ,warehousing and logistics,and overhead .Machine and labor costs are inexorably related and make up ,along with materials expenditures,the bulk of production costs .When a material is chosen ,the process ,including the machine,is frequently specified .Alternatively,if a machine is available ,the raw material that can be processed on that machine may be utilized .One could say that the purpose of economical production is to produce at a profit .This infers that the cost must be acceptable and competitive ;also ,a demend for the product must exist or must be created. Efficient in production since the first use of machine tools ,there has been a gradual trend toward making machines more ifficient by combining operations and by transferring more skill to the machine,thus ruducing time and labor.To meet those needs,machine tools have become complex both in disign and some are completely automatic .This technical development has made it possible to attain the high production rate with row labor cost that is essential for any society wishing to enjoy high living standards.Computer-aided design and manufacturing are significant steps of progress. Along with the development of production machines ,the quality in manufacturing must be maintained.Quality and accuracy in manufacturing operations demend that dimensional control be maintained to provide parts that are interchangeable and give the best operating service.For mass production,any one of a quality of parts is quickly assembly.A product made of interchangeable parts is quickly assembled,lower in cost ,and easily serviced.To,maintain this dimensional control ,appropriate inspection facilities must be provided. Three criteria that determine economical production are; one,A functional but simple design that has appropriate aesthetic quality. two,A material choice that represents the best compromise among |