CNC Milling in the Production of Automotive Parts

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Posted on: July 31, 2018, | By WayKen Rapid Manufacturing

One good thing about aluminum is that it is a comprehensive element that can be of meaningful use in different sectors. It has characteristics that make it one of the best materials for use in various areas. Some of the most common facial characteristics include its lightweight and flexible nature. This makes it perfect for use in the car production industry, the aircraft industry, and the power generation sector.

It can be used in the production of essential parts of a car like the reflectors found in a car lamp. The CNC machining process is used at this stage. Several procedures can be used to come up with an aluminum CNC reflector. One method that can be used in the creation of an aluminum CNC reflector is milling. The use of this production procedure dates back to the 19th century. It’s still being used up to date by different auto manufacturers.

aluminum reflector CNC-6

CNC Milling

This procedure involves the use of cutting equipment to comminute coatings of a material from an object being created with the use of any other machine or tool. This is entirely different from three-dimensional printing where several tiers are added. This procedure kicked off from the rotary filing practice which was common during the 19th century. The milling procedure experienced significant developments and witnessed a lot of improvements in its technology, providing the basis for CNC milling which is being used up to date.

CNC Machining is another form of milling procedure. Commonly referred to as computer numeric control, it involves the mechanization of tooling equipment by using computers that facilitate different tasks using an already programmed series of machine-administered instructions. The different models are created using computer-aided design (CAD) software.

All parts created using the CAD include the measurements, external appearance, dimensional spaces, and other materials. They are later on moved into production commands by computer-aided manufacturing software. It spells out the model into specific directives which are later on entered into the CNC machine to start the production process. Another feature is the computer-operated mills that are upright and capable of moving the shaft through the Z-axis. This creates room for more speed and accuracy. You will find several types of CNC milling machines at affordable rates.

aluminum reflector CNC-3

The Milling Process

The milling procedure should be carried out by a qualified expert. He or she should be responsible for the operation of the milling machine. The milling process involves a number of steps that you have to go through to come up with the end product. First, you have to figure out if you will be doing bulk production or you will be producing parts in small quantities. You should then evaluate the illustrations presented to you by the engineer or professional and stick to the set plan.

One can now come up with or create a design using a computer-aided design or manufacturing system. Bring together the holding device, tooling device, and the object being worked on in the computer numeric control center. Set up things like speed, shape, and cut in accordance with the original plan or the circumstances that are suitable for that specific exercise. Carry out maintenance and run the different processes during the right time to preserve the dimensions and other essential features required during the process.

Most production houses use the CNC machining procedure to come up with the perfect completion of three-dimensional parts. It is widely used in the production of car reflectors.

The Relevance of CNC machining in the Automotive Sector and Creation of Aluminum Parts

The use of CNC machining in the production of car parts comes with a number of advantages. One of them is that it is swift. The fact that most of the operations are programmed or computerized speeds up the whole procedure. This makes it more useful for high quantity productions of parts that are of good quality. There is no room for glitches or mistakes when using this procedure. It gives room for enhancements which helps one come up with highly accurate parts.

CNC machining does not require one to use so much labor. This is because most of the operations are programmed. This process may only need one engineer to run different operations. You get to save significantly on labor costs. Production is of top accuracy using the CNC machining process. The cutting tools will slice the different materials accurately to give them that quality finishing.  You will get parts with a very accurate finish.

The production of car parts like reflectors may give different manufacturers a difficult time. The top levels of accuracy and its convoluted shapes are what make the production process much difficult for most companies. Aluminum is one of the materials that can be used in the production of different car parts with no defective features.

As stated earlier, this material is long-lasting and easy to design. It is also featherweight and can withstand any form of disintegration.  Aluminum is an excellent heat conductor, and also an ideal reflector of heat and light which makes is the best for car reflectors. This material can also be used in the production of other parts in the car manufacturing industry. Some aircraft and flying object parts can be made using aluminum.

Other procedures that can be used during the process include electrical discharge machining and other after-finish practices. The electric discharge machining procedure involves the use of electrical discharges to achieve the much-needed shape or completion of your car reflector. The most common after-finish practices include polishing and plating. They are usually meant to improve the surface finish. These practices also enhance the visual characteristics and wear resistance of the different parts produced through CNC machining.

aluminum reflector CNC-4


The manufacture of automotive parts using aluminum has been made easier with the CNC milling process. The precision that comes with the production of such elements is one good reason why it is seen as useful. You are able to come up with quality parts out of this production procedure. It is also fast and simple compared to the use of other manufacturing procedures. You should try out the CNC milling process to come up with top-quality automotive parts.

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