Chapter 1 The Process Planning ofmechanical manufacturingAbstractThepurposeofmechanicalmachiningistoturnakind of rawmaterial intothefinished parts that meet the requirement ofthe product. Under given manufactureconditions, howto applyboth aneconomical and efficientmethod,as well asa rational processroutine,to achievethedesiredpartsistheconcernofthischapterThechapterbeginswithsomeimportantconcepts such as working procedure, processtep, cutting in one continuous feed, setup,machiningposition,referencedatummanufacturingprocessandsoon
Chapter 1 The Process Planning of mechanical manufacturing Abstract The purpose of mechanical machining is to turn a kind of raw material into the finished parts that meet the requirement of the product. Under given manufacture conditions, how to apply both an economical and efficient method, as well as a rational process routine, to achieve the desired parts is the concern of this chapter. The chapter begins with some important concepts such as working procedure, process step, cutting in one continuous feed, setup, machining position, reference datum, manufacturing process and so on
1.1Manufacturing Process1.2 The function and design method of process planning file1.3 Selection of positioning reference1.4 Design of process planning1.5 Plan the metal removal1.6 Dimensional Chains1.7 The determination of operational dimensions1.8 Standard machining time and economic analysis
1.1 Manufacturing Process 1.2 The function and design method of process planning file 1.3 Selection of positioning reference 1.4 Design of process planning 1.5 Plan the metal removal 1.7 The determination of operational dimensions 1.6 Dimensional Chains 1.8 Standard machining time and economic analysis
1.1 Process of product1.1.1Processofproduct(生产过程）Manufacturingistheutilizationandmanagement of materials,peopleequipment,and money toproduceproducts.For successful andeconomical manufacturing tobe achieved,planning must start at thedesign stage and continue through the selection of materials, processes.equipment, and the scheduling of production. These related processesconstitutethe so-calledproductionprocessProcess ofproductinvolve:Product design、prepare、transport of raw and processed materials、rough manufacture、mechanical machining、heat treatmentassembly、deburring、test、paintingandpacking.These related processes constitutethe so-calledproduction process.Itisusually completed by the coordinated work of different factories orworkshops
1.1 Process of product 1.1.1 Process of product (生产过程） Manufacturing is the utilization and management of materials, people, equipment, and money to produce products. For successful and economical manufacturing to be achieved, planning must start at the design stage and continue through the selection of materials, processes, equipment, and the scheduling of production. These related processes constitute the so-called production process Process of product involve： Product design 、 prepare、transport of raw and processed materials、 rough manufacture 、 mechanical machining 、 heat treatment 、 assembly、 deburring、test 、painting and packing. These related processes constitute the so-called production process. It is usually completed by the coordinated work of different factories or workshops
1.1.2ProcessofPart（工艺过程）Process of Part:The process by which the shape,dimensions and performance ofraw material or rough casting are changed directly by mechanicalmanufacturing into desired parts is called component manufactured partproduction,orprocessroute.When parts are assembled into a product, it is called the assemblyprocess
1.1.2 Process of Part （工艺过程） Process of Part: The process by which the shape, dimensions and performance of raw material or rough casting are changed directly by mechanical manufacturing into desired parts is called component manufactured part production, or process route. When parts are assembled into a product, it is called the assembly process
1.1.2.1 part productionPartproductionconsistsofoneorseveraloperationsinsequenceA rough casting can be turned into a finished or semi-finished productbytheoperations.(1)operations(工序)When one operator (or a group of operators) works in a definiteposition(one machine tool or clipping table) to achieve the continuousmanufacturingof oneor severalpartssimultaneously.An operation isthe basic element of process procedure as well as of the productionscheduleandofcostestimation
1.1.2.1 part production Part production consists of one or several operations in sequence. A rough casting can be turned into a finished or semi-finished product by the operations. (1) operations （工序） When one operator (or a group of operators) works in a definite position(one machine tool or clipping table) to achieve the continuous manufacturing of one or several parts simultaneously. An operation is the basic element of process procedure as well as of the production schedule and of cost estimation