遼字石油化工大學⊙ Othe characteristics of different production types are summarized in the following table Table 6-2 The the characteristics of different production types type characteristic single production batch production large quantity production made-to-fit. no few repaired by fitters with selection and matching process when high precise is required raw material type and Casting manually with wooden Party die casting or die Die casting or forging widelyused, and metal removal method mould, or forged freely. Low forging Medium accuracy and other high production methods also used accuracy, and large metal removal medium metal removal High accuracy and low metal removal Manufacturing Arranged in groups according to/ mixed with high production and High produciton, special purpose and machine type and size specialized machine tools. Aliged/ automatic machine tools widelyused Aligned in flow line by part and operation types Standard attachments used widely F灿190w时 fing Acura requirement met by fit rtly used fittingmethod setup method general purpose cutting tool and Special purpose cutting tool an I Cutting and ins pection ins pection ins truments are widely ins pection instrument are widely High speed cutting tool and ins peciton instruments are used used used Lower operation skill requirement, and Requirement to High skill operators are required /operation skill is required to some high operation skill is required for the tool operators degree General process route is Process route Simple process routing card provided. For the key parts, a Detailed process planning file is provided detailed process route is needed
●the characteristics of different production types are summarized in the following table:
遼字石油化工大學⊙ 6.2 The Function and Design Method of Process Planning File A. The Format of process sheet The term process route is the process planning file in which the process and operation method are specified. In another word, the aligned sequence of each operation, the part dimensions, tolerance and technical requiremnt, technical equipment and measures, cutting parameters, standard produciton time, and levels of opertors skill are all included in the process planning file
6.2 The Function and Design Method of Process Planning File A.The Format of process sheet The term process route is the process planning file in which the process and operation method are specified. In another word, the aligned sequence of each operation, the part dimensions, tolerance and technical requiremnt, technical equipment and measures, cutting parameters, standard produciton time, and levels of opertors' skill are all included in the process planning file
遼字石油化工大學⊙ Table 6-3 Routing Sheet Name of pal name of part and type part No ne of name Raw type all Route Sheet plant materi material I/code a (kg)I Net Page Parts quantity quantit mance in a product y in a Name of the Technique Techni Standard time cal evaluation (mi ments device and No class Fixt operat conte Number of ation urin ion nt of parts in one g step opera step veloci l Numbe tion depth( ty per r of Freedo spect fixture Cutting mm)I minut rotatio m tools/ion single and end Editor Audit n
遼字石油化工大學⊙ Before products are manufatured, technical and production preparation can be made beforehand according to the demands of process planning sheet (table 6-4) According to the process planning sheet, the kinds type and number of machine tools, the production area needed, the plan arrangement of equipment, the number, type and class of operators required can all be dicided. Then, the planning of factory preparation enlarging or rebuilding will be decided accordingly
Before products are manufatured, technical and production preparation can be made beforehand according to the demands of process planning sheet.(table 6-4) According to the process planning sheet, the kinds, type and number of machine tools, the production area needed, the plan arrangement of equipment, the number, type and class of operators required can all be dicided. Then, the planning of factory preparation, enlarging or rebuilding will be decided accordingly
遼字石油化工大學⊙ Table 6-4 Process sheet of mechanical manufacturing Name of part and type name of part rt NO The ty all No of materi Weig Operation ht(kg) factorySheet\ material code al dimen age sIon weight Char No in every Batch product siz Standard works Technique equipment hop and name Name of th evaluation( Operation Number of operation equipments and No lof skill Fixture Cuttin Prep Jigs g on tool single and tools end des Editor Audit