[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-649936-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-649936-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":73,"head_meta":75,"extra_data":77,"updated_unix":79},105,"en","cnc-milling-worldskills-occupational-standards-occupational-description-and-wsos","CNC Milling - WorldSkills Occupational Standards - Occupational description and WSOS","","CNC Milling occupational overview describes how Computer Numerical Control machining centers shape metal and other solid materials using G and M codes. It outlines the machinist’s responsibilities, including interpreting engineering drawings, generating CAD/CAM programs, setting up tools and work holding, selecting cutting conditions, and operating/inspecting/maintaining dimensional accuracy within tolerances. 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Most people cannot imagine how important these technologies are in their lives. There is nothing that we use that hasn’t in its manufacturing utilized CNC technology. It is present in products and objects of everyday life, such as cars, airplanes, components of machines of all types, moulds for tools used for household machines, medical prosthetics, cellphones, and toys.  \nCNC milling machines are machine tools used for the shaping of metal and other solid materials. These machines exist in two basic forms: horizontal and vertical. This refers to the orientation of the cutting tool spindle. Early milling machines were manually or mechanically automated, but technological advances have led to the development of Computer Numerical Control, such as the CNC machining centre. CNC refers to a computercontrolled device to read and store instructions. This numerical information, generally “G and M” codes (a programming language) is then used to control and drive a machine tool which is a powered mechanical device (“machining centre”) . A machining centre is used to fabricate components using cutting tools for removing the material.  \nTo form the finished part, the cutting process can be started from a solid block, pre-machined part, casting, or forgings. For those scenarios, the skill requires the highly skilled CNC milling machinist must read and interpret complex technical drawings and specifications, and work to a high degree of precision and detail. They must be proficient in metal work and understand how metals react to various processes. They must be a skilled computer  \noperator and machine operator. The programs can be generated manually or using Computer Aided Design/Computer Aided Manufacture (CAD/CAM) software.  \nTo achieve the finished part, the CNC milling machinist undertakes a sequence of essential activities, from interpreting engineering drawings to optimizing the machining process:  \n• Interpreting engineering drawings and following the specifications  \n• Generating the processes and programs with the CAD/CAM system and/or G and M-codes  \n• Setting up the tools, work holding devices, and work pieces on the CNC milling centre  \n• Manipulating cutting conditions, based on the properties of the material and tools  \n• Operating, inspecting, and maintaining the accuracy of dimensions within the specified tolerances  \n• Optimizing the process, taking into account the production type: whether large quantities of one part, small batches, or one-of-a-kind items. Today a wide range of industries require CNC milling machinists to program, operate, and keep sophisticated machining centre’s running in an efficient and reliable way. Large enterprises such as automobile plants, medium sized enterprises such as mould making, and small enterprises in the maintenance field, are some of many environments in which the CNC milling machinist plays a key, integral role to the success of the metalwork industries.  \nGeneral notes on the WSOS  \nThe WSOS specifies the knowledge, understanding, and specific skills that underpin international best practice in technical and vocational performance. It should reflect a shared global understanding of what the associated work role(s) or occupation(s) represent for industry and business ([www.worldskills.org/WSOS](www.worldskills.org/WSOS)) .  \nThe skill competition is intended to reflect international best practice as described by the WSOS, and to the extent that it is able to. The Standard is therefore a guide to the required training and preparation for the skill competition.  \nIn the skill competition","cbCaiuDLQ4JVLx3n","https://ap.wps.com/l/cbCaiuDLQ4JVLx3n","pdf",1178936,"English","# Occupation description and WSOS\n## CNC milling role and machine principles\n## Essential activities in CNC milling\n## General notes on the WSOS\n## Skill competition assessment and structure\n## Section weighting and marking scheme\n## WSOS section: relative importance (%)","[{\"question\":\"What does CNC milling involve at a high level?\",\"answer\":\"It uses CNC-controlled machining centers to shape metal and other solid materials by removing material with cutting tools, starting from blocks, pre-machined parts, castings, or forgings.\"},{\"question\":\"What are the core activities of a CNC milling machinist?\",\"answer\":\"They interpret engineering drawings, generate processes and programs (CAD/CAM and/or G and M codes), set up tools and work holding, choose cutting conditions, and operate/inspect/maintain dimensional accuracy and tolerances.\"},{\"question\":\"How does WSOS organize and assess the required skills?\",\"answer\":\"WSOS specifies knowledge and specific skills aligned with international best practice, divided into sections with reference numbers and mark weightings. Assessment in the competition focuses on performance, with separate knowledge tests only where there is a strong reason.\"}]","CNC Milling - WorldSkills Occupational Standards - Occupational description and WSOS | PDF",1792811847]