Wednesday, January 25, 2017

Information On Machining In Chicago IL

By Carl Cole


Machining is a manufacturing process that employs power tools to cut and shape raw materials into specific sizes. A controlled material-removal process is used for the cutting. Machining is one of the methods classified under subtractive manufacturing. Machining in Chicago IL is a well-developed industry with many experts and service companies operating within it. Companies and individuals hire the services of service companies when they need them at a fee.

Another definition of machining is a kind of subtractive manufacturing that makes use of a set of material-working processes that utilize power-driven machine tools to produce desired geometry in materials. Materials are removed physically using power tools such as drill presses, lathes, saws, and milling machines. These tools are not used alone, but together with sharp cutting tools.

In most applications, machining is done using CNC. CNC is the abbreviation used for Computer Numeric Control. CNC machines allow programmers to program the machine with commands detailing which what tools to use and how to machine a part. Computer aided design and computer aided manufacturing are integral parts of CNC machining. CAD and CAM have made this process more effective and precise because of increased accuracy in commands.

Metal products were the only kind of products that could be machined initially. However, with better technology coming up, it became possible to machine just about any material. Glass, ceramic, wood, plastic, and stone are some of the materials that can be machined today. Composite materials are also capable of being machined. Depending on the application, end-products can be of any size and shape. Round, hexagon, rectangle, square, and oval are some of the shapes that can be achieved.

Plates with different thicknesses can be machined using CNC machines including billet, sheets, coils, forgings, and molded parts. The size of the produced parts vary a lot and can be as tiny as 0.003 inches. The minimum and maximum size of parts can usually be adjusted into the machine. The nature of material that is being machined usually determines the choice of the tool to be used for the process.

Harder materials usually need carbide tipped tools to cut through them. The tools must be sharpened properly to ensure that accurate results are achieved. In materials that have poor thermal conductivity, good heat flow must be ensured to avoid deformation. This is more applicable to plastics and other softer materials. In most cases, chips are used to dissipate the heat that is generated from the process.

Machining is done through various types of methods. Common ones include turning, milling, thread cutting, drilling, and sawing. Because end-milling is more economical, it is often preferred over peripheral milling. If the work involves high quality requirements, then turning is the method of choice. Machining situations vary and the cutting edge must have its geometry designed to match various situations.

Twist drill is the form of drilling used. The angle at which twist drills are placed range between 12 and 16 degrees. Spiral grooves are made very smooth in order to attain the best level of swarf removal. In order to increase precision when drilling larger holes, a pilot hole is made first. If a pilot hole is not made, hollow drills may be used or trepanning.




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