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Featured & Certified U.S. Manufacturers

USA Precision & Fabrication - Specializing In Machining and Manufacturing Services Since 1986.

Lyman-Morse Fabrication - Established & Trusted Source For Custom-Made Metal Fabrication Projects.

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JB Machine - CNC machining, production machining, one off jobs and prototyping as well as repair and maintenance capabilities.

EX-Factory Metal - Online Dealer Of New and Used Metalworking & Fabricating Machines and Equipment.

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Lincoln Tool and Machine Corp. - Precision CNC Machining Specialists.

Ad Mackay, Inc. - Distributor of High Purity Metals, Non-Ferrous, Precious, Specialty, Alkali and Refractory Metals.

B&D Precision Machine -Machining Job Shop, CNC and Manual Milling, CNC & Manual Lathe Work.

Gentec Manufacturing, Inc. - Full service ISO 9001:2008 Certified CNC Precision Machine Shop.

Cox Manufacturing Co. - Screw Machine Products and Precision Turned Products Manufacturer.

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AmeriFormance LLC - Precision CNC Machine Shop.

Bobken Automatics - Manufacturer of Precision Machine Parts.

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TriDelta Systems LLC - Complete manufacturing systems solutions provider.

APM Machine, LLC - Manufacturer of high quality CNC machined parts.

Machined Metal Parts: 4 Basic Processes in their Production

Machined metal parts will not be produced without different types of processes to consider. There are four basic processes discussed in this article. Under each process, you will also find other stages essential in metal part production.

Machined metal parts are the outputs of machining services. While there are a variety of machining services used in order to manufacture all sorts of materials including plastic and wood, there are four basic processes used in coming up with these products. Under these four basic processes are sub-classifications to consider.

The first process for machined metal parts – casting

There are three sub-classes found in the casting process. The first one is known as investment casting where plastic or wax is typically injected to the metal die. It produces parts that have tight tolerances and high finishes. Since this process produces a great output, secondary machining is usually not required.

The second process is known as die casting. This one is used to produce thin-wall and complex shapes with smooth surface finishes. This is usually cheaper and produces components faster than the investment casting process.

The last casting process is known a sand casting. This is considered the oldest yet the simplest and cheapest casting method both for ferrous and non-ferrous materials. The process starts by forming a pattern for the desired shape out of metal, plastic and wood.

The second process for machined metal parts – metal stamping

Like the casting process, metal stamping has three subclasses namely the progressive, deep drawn and fine blanking. Progressive metal stamping is one that involves a series of complex processes and requires a variety of die impressions just to come up with the final shape. Deep drawn metal stamping, on the other hand, makes use of different stages to avoid cracking, tearing and wrinkling of the output. Lastly, the fine blanking metal stamping is a process that makes use of automated technologies known as triple production action presses.

The last two types of processes for machined metal parts – precision machining and forging

Precision machining is that type of process that is capable of producing a number of outputs whether for large and small projects. It also requires a variety of skills from the machinist since it deals with precise or accurate outputs. Typically, the tools used in this process require calibration and grooving.

The last type of process known as forging involves die and drop processes. These two processes hammer the metal found in between two pieces of dies just to come up with the desired shape. The die is usually divided into two where the first half is attached to the upper section or the hammer while the second half is attached to the lower section or the anvil. Typical examples of machined metal parts produced from this process are fasteners, wrenches, engine crankshafts and gear blanks.

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