CNC Auto Parts: Perfect manufacturing process
CNC auto parts refer to the process of manufacturing, processing, assembling and other operations on auto parts. With the continuous upgrading of automobile technology, the requirements for auto parts processing are becoming higher and higher. Advanced technology and equipment are needed to ensure the production of high-quality auto parts. CNC auto parts, as one of the most widely used methods, can adapt to the needs of the market and consumers.
Therefore, this article will introduce you in detail the inseparable relationship between CNC machining and auto parts manufacturing. Through understanding the advantages, application parts, processing technology and precautions of CNC auto parts, you will have a curiosity about the common cars around you. What are the numerous auto parts? How are they produced?
1.Advantages of CNC auto parts in automotive applications
CNC machining is one of the most mature methods for automotive parts because of its scalability and the ability to produce parts quickly, precisely and accurately. The following are some advantages of automotive CNC machining:
CNC auto parts are one of the most mature methods of auto parts processing because of its scalability and the ability to produce parts quickly, precisely and accurately. The following are some advantages of CNC auto parts:
(1) Precision parts
Many auto parts that are specifically used for car modification have very strict and controllable tolerances on their characteristic dimensions. In order to meet this specific requirement of customized auto parts, CNC machining must be used.
(2) Automation
Automation itself is an advantage of CNC auto parts. Compared with manual processes, it not only shortens production time, but also simplifies the automobile manufacturing process.
(3) Fast manufacturing
CNC auto parts can provide fast production time. As long as you have the design and CNC program ready, you can speed up the production of parts according to the time required.
(4) Scalable production
The process of CNC auto parts processing is highly adjustable. Whether it is large or small batch processing, it can be easily scaled or expanded. Therefore, CNC manufacturing is very suitable for prototyping, custom parts manufacturing and even mass production of parts.
(5) Repeatability
CNC auto parts also bring repeatability guarantees to the automotive industry. It ensures that parts are consistent between batches, which is crucial. Then all CNC cars launched will meet the same standards.
2.Common CNC auto parts
(1) Interior panels
Interior components of vehicles such as dashboards can be manufactured using CNC processing to achieve contours or shapes. Increase the elegance of the car interior.
(2) Starter Motor
One of the CNC machined automotive parts includes some of the important components in the internal combustion engine of the car. The precision and complexity of the process allows for the optimization of these components. Manufacturers can also easily improve them in terms of performance, durability and reliability.
(3) Gears
Gears used in the automotive industry are often manufactured and finished through CNC auto parts due to their critical functions. As with other components, accuracy, precision and high strength are the top priorities for gears.
(4) Wheel Discs
Machine-machined wheel discs add a different level of overall elegance to the car. Usually, these wheel components are manufactured through CNC milling processes in CNC auto parts to achieve their contours or shapes.
(5) Camshafts
These parts are usually machined to maintain their structural integrity and precision. Camshafts are one of the most critical components in a car, and they greatly affect the combustion efficiency and efficacy of the fuel.
(6) Cylinder Heads
In the automotive and racing industries, CNC auto parts used in the automotive industry also have several advantages. These benefits come from producing engine blocks and cylinder heads, which cover the cylinders of internal combustion engines.
(7) Drive axles
CNC automotive parts produce precision automotive parts in drive axle mechanisms, such as hypoid gears and bevel gears. These key components enable the wheels to move freely vertically and turn when the car turns.
(8) Gearbox
The gearbox is the second stage of the vehicle’s drivetrain and consists of various shaft and gear components. Cast gearbox parts can be finished with high precision and efficiency using CNC milling and drilling tools.
Summary:
CNC auto parts processing has an important impact on improving vehicle design and performance, driving the transformation and upgrading of the automotive manufacturing industry. With the development and requirements of the industry, OEMs can also use CNC machining to produce customized components or rare replacement parts.
3.Seven processes of CNC auto parts
(1) Automotive parts forging processing
Forging methods are divided into free forging and model forging.
Free forging is a processing method in which a metal blank is placed on an anvil and subjected to impact or pressure to form the blank (commonly known as “forging”). Model forging is a processing method in which a metal blank is placed in the die cavity of a forging die and subjected to impact or pressure to form the blank. Compared with free forging, the workpiece manufactured by die forging has a more complex shape and more precise size.
(2) Casting of automotive parts
Casting is a production method in which molten metal is poured into a mold cavity and the product is obtained after cooling and solidification. In the manufacturing process of CNC auto parts, many parts are made of cast iron blanks, accounting for about 10% of the total vehicle weight, such as cylinder blocks, transmission housings, steering housings, rear axle housings, brake drums, various brackets, etc.
(3) Welding of automotive parts
Welding is a processing method in which two pieces of metal are locally heated or heated and pressurized at the same time to join them together. It is generally divided into electric welding, spot welding and gas welding. Manual electric welding is not widely used in automobile manufacturing. The most widely used is spot welding. It usually requires thousands of welding spots to weld the entire car body. Gas welding is common in repair workshops, but due to its large heat-affected zone, it causes deformation and metallographic changes in welded parts, resulting in reduced performance, so it is rarely used in automobile manufacturing.
(4) Cold stamping of automobile parts
Cold stamping or sheet metal stamping is a processing method in which metal sheets are subjected to pressure in a die and are cut or formed. Automobile parts processed by cold stamping include: engine oil pans, brake base plates, automobile frames and most body parts. CNC auto parts are generally formed through processes such as blanking, punching, drawing, bending, flanging, and trimming.
(5) Cutting of automobile parts
CNC auto parts cutting is a processing method in which a metal blank is cut layer by layer with a tool to obtain the required shape, size and surface roughness of the workpiece. Metal cutting includes two methods: benching and machining. Benchwork is a processing method in which workers use hand tools to cut, while machining is a method of cutting with the help of machine tools, including turning, planing, milling, drilling and grinding, which are widely used in processing workpieces.
(6) Heat treatment of automotive parts
Heat treatment is a method of reheating, keeping warm or cooling solid steel to change its structure to meet the use requirements or process requirements of the parts. Heat treatment processes include annealing, normalizing, quenching and tempering. Using different processing techniques can cause different structural changes in steel, and ultimately achieve the completion of CNC auto parts.
4.Precautions for CNC automotive parts
(1) Material selection
Material selection plays an important role in the quality and performance of CNC auto parts. When selecting materials, factors such as strength, toughness, wear resistance and corrosion resistance need to be considered.
(2) Selection of processing technology
The selection of processing technology should be determined based on factors such as the material, shape and design requirements of the parts, and factors such as the required accuracy, processing difficulty and construction period need to be considered.
(3) Selection of machine tools and tools
The selection of machine tools and tools has a vital impact on processing accuracy and efficiency. It is necessary to select appropriate machine tools and tools based on the specific processing process of CNC auto parts.
(4) Control of machining accuracy
The machining of CNC auto parts requires high precision, so the machining error needs to be controlled during the machining process to ensure that the machined parts meet the requirements.
5.Summary
In general, CNC auto parts have an important impact on the transformation and upgrading of the automotive industry, but it is also a very complex process that requires comprehensive consideration of multiple factors. When manufacturing high-quality automotive parts, engineers need to master a lot of knowledge to ensure the production of CNC auto parts with high dimensional accuracy, stable performance, and good durability, and contribute to the development of the automotive industry.
If you are looking for an experienced CNC machining manufacturer, Xavier is your ideal choice. The Xavier team is well-equipped to provide high-quality CNC machining solutions. If you need more information or to discuss your machining needs with us, please feel free to contact us.