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Custom Part

Custom components, which are parts designed especially for the product, are made by the manufacturer or by a supplier. Most custom components are produced using the same types of production processes as standard components (e.g., injection molding, stamping, machining); however, custom parts are typically special-purpose parts, useful only in a particular manufacturer’s product.

(Kalpakjian S., Schmid S.R.,Manufacturing engineering and technology, 5th Edition, p. 217)

CNC Welding

CNC welding machines allow complete control of welding amps, wire feed, welding feed rate and torch height. Consistent welds can be made from part to part. Once you have made a part and made the necessary adjustments on the first run, the machine will consistently weld the same seam the same way from then on. Because the control can store thousands of welding part programs, you will get the same performance results when you return to make another run of the same part months later.

(Brink C., McNamara B., Engineering Fabrication-Sheet Metal Work, p.153)

CNC Milling

CNC milling machine or machining centres are computer-operated milling machines. If you compare a conventional milling machine to a CNC machining centre, you will be able to identify the same components such as the chuck, the cutting tool and the bed. The only real difference between a CNC machining centre and a milling machine is that the CNC machining centre has a computer control.

(Brink C., McNamara B., Engineering Fabrication-Sheet Metal Work, p.151)

Raw Material

Raw materials are unprocessed extractive or agricultural products - for example, mineral ore, timber, wheat, corn, fruits, vegetables, and fish. Raw materials become part of finished products. Extensive users, such as steel or lumber mills and food canners, generally buy huge quantities of raw materials. Because there is often a large number of relatively small sellers of raw materials, none can greatly influence price or supply. Thus, the market tends to set the price of raw materials, and individual producers have little pricing flexibility.

(Lamb, Hair, McDaniel, Marketing 10e, p.218)