What Is Computer Aided Manufacturing?

Over the past decade, manufacturing processes all over the world have undergone some dramatic changes. The introduction of automated systems and computer technology has allowed industries to significantly increase their productivity. CAM is the abbreviation for Computer Aided Manufacturing. Computer aided manufacturing accurately converts product drawing or the object into a computer readable code format, enabling the machine to manufacture the product. Computer aided manufacturing can be used in different machines like lathes and milling machines for manufacturing the related product.

A computer aided manufacturing system allows the manufacturer to systematically communicate work instructions to the machine. CAM has evolved from a technology referred to as the Computer Numerical Control (CNC), invented in the 1950s. CNC performed a set of coded instructions in a punched paper tape.

Computer aided manufacturing facilitates effortless and quick computer programming and faster execution of design changes. The computer aided management system integrates the computer aided design systems and controls tasks that involve order placement, scheduling, and replacement of tools. The implementation of CAM system leads to overall increase in efficiency of the manufacturing process. CAM systems are used in the automotive, aviation and furniture manufacturing sectors and areas such as mechanical engineering and electronic designing. Another significant benefit of using the computer aided management system is that it allows customization of the manufacturing process for creating client specific designs.

A computer aided manufacturing system requires a 3D environment for making it compliant with CAD systems. The CAM system can cost $18,000 or more along with the appropriate software. CAM allows automated integration of the manufacturing procedure with other mechanization systems such as Computer-Integrated Manufacturing (CIM), Integrated Computer-Aided Manufacturing (ICAM), Flexible Manufacturing System (FMS), Direct Numerical Control (DNC), and Manufacturing Process Management (MPM). Repetitive tasks involved in the manufacturing process are delegated to machines using the CAM system, allowing workers involved to concentrate on quality control and productivity.

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CNC Machining

CNC machining in the industrial the context refers to Computer Numerical Control. Computers are used to control machine tools for the purpose of manufacturing complex and intricate parts of metal and other material. More over the cutting process is enabled, using a program written in a notation confirming to EIA-274-D standard, which is often referred as G-code. The computer numerical controls were developed in late 1940’s and 1950’s, but were briefly preceded due to less advanced numerically controlled machines. However the CNC technology has developed greatly, with advances in mechanics and the computer sector. The developed CNC machines have drastically changed the face of the manufacturing industry.

More over the CNC structure has dramatically reduced human intervention in machining. It is easy to cut curves or straight lines, and structuring intricate 3-D parts has become relatively easy.

However CNC machines have helped to increase automation of the manufacturing sector, and have enabled improvements in consistent and quality production. The machininig technology has even helped significantly in reducing the frequency of errors and has provided the CNC operators with time to perform additional tasks. CNC automation also gives higher flexibility to the way tools are gripped in the manufacturing process, and the time required to produce different products.

Often for producing parts requiring several operations, a series of CNC machines are combined into one station, commonly referred to as a cell. However CNC structures today are controlled directly, with help of the files created by CAM software packages. Wherein the assembly can go directly from design to manufacturing, eliminating the need of producing a paper draft of the manufactured component.

Moreover CNC technology has enabled convenient and automated handling, of various machine tools such as drills, edm, lathes, milling machines, wood routers, sheet metal works, and hot-wire foam cutters. CNC technologies represent a special segment of industrial robot systems, as they are flexible and programmable to undertake any machine operation task.

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