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Applications of CNC Machining in Automotive Industry

CNC machining is essential, which can ensure the accuracy of parts and machining efficiency in modern automotive manufacturing. With the development of technology recently, a lot of new scientific technologies will be applied in automotive manufacturing. Now let’s see what the application of CNC machining in automotive manufacturing is.


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History of Automotive Manufacturing

Since its inception in 1860, the automotive manufacturing industry has continued to grow based on innovation and technology. Many of the major innovations in the automotive industry are directly related to advances in manufacturing. Automotive cnc machining has driven many manufacturing advances in this industry. In 1913, for example, the first moving assembly line appeared, revolutionizing automotive manufacturing. With this opportunity, he brought mass-produced cars to people all over the world. Since then, precision auto parts have been the main target of the manufacturing industry. In recent years, the continuous development of automotive design, robotics and manufacturing processes has led to a significant increase in automotive processing automation. These same technologies have also led to improvements in vehicle design and performance.

Reasons for Choosing CNC Machining Auto Parts

With the continuous improvement of the demand for automotive manufacturing, more and more auto parts are processed on CNC. Manufacturers around the world are looking for benefits from this process, including processing speed, automation, repeatability, and more. Here are some of the advantages of CNC automotive parts:


1、Production Speed

Compared with traditional machining, CNC machining can provide faster production times because it is automated and does not require long, intensive manual machining. Some processing steps help speed up and optimize the running time of the machine during the production planning process.


2、Automation

Automation is one of the main advantages of CNC in automotive parts machining, compared with traditional manual processing. It can not only shorten the production cycle, but also simplify the entire process of automotive manufacturing. If you put the parts on the CNC machine for processing, the manipulator will help to remove the workpieces after processing, which can save a lot of manpower and time.


3、Repeatability

CNC controls the path of machining through computer programs, so it can be executed repeatedly. That is to say, you only need to set and write the program once for the same part, and you can process it repeatedly. In the automotive industry, it is very important to ensure that parts are consistent from batch to batch. In this way, all the cars introduced will meet the same standards.


4、Accuracy

Due to its repeatability, CNC machining enables tight tolerances. Especially for automotive manufacturing, this technology can meet the tolerances required for engines and other functional components. As a result, you can be sure to get the parts for the precision car at the end of the manufacturing process. The process is also capable of producing complex parts for vehicles.


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Common CNC Machining Auto Parts

According to these characteristics, many parts in the car will be placed on the CNC machining, including:


Driving Shaft

The drive shaft includes crankshaft, camshaft, gear shaft, rotating shaft, etc. The processing methods of these shafts are basically the same because you all know that the processing products of the shaft will choose to turn on the lathe, and these drive shafts in the car are no exception. Their processing methods are mainly composed of the following parts:


1、The design processing program

It is the first part of CNC machining parts. Design the appropriate processing program according to the structural characteristics of the drive shaft and performance requirements. The program needs to take the various components of the drive shaft into account and control the cutting speed, depth and path to ensure machining accuracy and efficiency precisely.


2、Roughing

CNC machine tools (lathes or milling machines) help to rough the raw materials to remove more materials and form a rough shape.


3、Heat treatment

After roughing is completed, the heat treatment operation will be carried out according to the selected material in order to extend the service life of the shaft. The purpose of this operation is to improve the hardness and wear resistance of the material.


4、Semi-finishing

Remove the margin left by rough machining once again, so that the shape and size of the shaft are closer to the design requirements.


5、Finishing

Use high-precision CNC machines and tools to finish the shaft, ensuring that all sizes and parameters can meet the design requirements.


6、Gear making

Use special gear processing props or machine tools (gear milling machine, gear shaper machine, etc.) to process the gear part above the shaft to form an accurate tooth shape.


7、Grinding

Grind the shaft to further improve its accuracy and finish.


8、Quality inspection

After the completion of processing, the shaft body is given a comprehensive quality inspection. This includes the use of measurement tools, such as dimensional 3 to detect the dimensions. At the same time, it can also conduct trial runs or complex tests to verify the performance and reliability of the shaft body.


In the entire process of processing, it is necessary to control the cutting parameters, cutting speed, cutting edge, etc., to ensure the processing quality and efficiency. Meanwhile, it is also essential to carry out regular maintenance and maintenance of the CNC machine to ensure its long-term stable operation.


Gear

In the automotive manufacturing process, the gears connecting various transmission shafts are also very common. Let's introduce the processing process of the gears below:


1、Gear roughing

This usually includes milling the outer circle, as well as the preliminary treatment of the basic shape of the gear. In this process, the separation of rough and finishing processing is the key to ensuring the quality of subsequent processing.


2、Quenching and tempering heat treatment process

After the size roughing is completed, quenching and tempering treatment is carried out to improve the hardness and wear resistance of the gear.


3、Gear finishing

Finish gears after quenching, including tooth shape milling and surface grinding. These steps help to improve the precision and surface quality of the gear.


4、Tooth shape processing

Tooth shape processing is a key step in gear processing, such as gear design, tooth drawing and other processes. These processes ensure that the tooth shape of the gear is compounded and the required accuracy is achieved.


5、Surface treatment

After the gear processing is completed, it may be necessary to perform surface treatment, such as spray treatment or coating treatment, to improve the wear resistance and corrosion resistance of the gear.


Throughout the machining process, it is crucial to control the surface temperature of the workpiece, select the appropriate tool and machining parameters, and ensure the accuracy and stability of the machining equipment. In addition, depending on the working conditions and material characteristics of the gear, the machining process may need to be adjusted to meet specific requirements. In short, the process of CNC gear machining is a complex and fine process, requiring experienced operators and advanced processing equipment to ensure the quality and accuracy of the gear.


Clutch

Clutch is also an indispensable part of automotive manufacturing, we also introduce the manufacturing process of the clutch below:


Drawing Analysis and Process Planning:

1、Read the clutch drawings carefully, learning about the clutch shape, size, accuracy requirements, materials and other information.

2、Choose the appropriate CNC machine tools and tools according to the drawing information,

3、Make a plan of detailed processing technologies, including processing sequence, cutting parameters, positioning methods, etc.


workpiece preparation and clamping:

1、Prepare the required materials and perform the necessary pretreatment, such as heat treatment, deburring, etc.

2、Clamp the workpiece correctly on the workbench of the CNC machine according to process planning requirements.


Programming and simulation:

1、Use CAD software to compile CNC machining program according to the processing technology planning.

2、Simulate the program to check whether the processing path, cutting depth (etc.) are reasonable, avoiding problems in actual processing.


CNC Machining

1、Import the prepared CNC machining program into the machine tool control system.

2、Set the cutting parameters, spindle speed, feed speed, etc. according to the requirements of the program.

3、Start the CNC machine tool and processing. In the processing process, you should pay more attention to the running state of the machine tool to ensure the stability and safety of the processing process


Inspection and Correction

1、Check the clutch size, form and position tolerance after completing processing.

2、Analyze the reasons and make corrections if unqualified items are found. Correction may involve adjusting cutting parameters, optimizing machining procedures, etc.


Processing and Packaging

1、The post-processing of the processed clutch, such as deburring, cleaning, rust prevention treatment, etc.

2、According to customers’ requirements or standard specifications, the clutch is packed to ensure that it is not damaged during transportation and storage.


  • Note: The above is only a basic process overview of CNC machining clutches. In the actual processing, it is also necessary to adjust and optimize according to the specific clutch type, processing requirements and machine conditions. At the same time, make sure that the operator has the appropriate skills and experience to guarantee processing quality and safety.


CNC can process a lot of parts in automotive manufacturing. An article can not introduce all the parts, but if you have the demand, you can contact Richconn. It has more than 10 years of processing experience in the CNC industry, making a great contribution to the automotive manufacturing industry all the time.


Outsourcing Your Precision Machined Automotive Products

Richconn provides a one-stop solution for all precision CNC machining services:


  • It has the most advanced CNC machining equipment and technology, which can achieve your high requirements for automotive parts, high standards of processing to ensure stable product quality.


  • Its team has rich experience in the field of automotive parts processing and can provide professional processing solutions for different parts types and requirements.


  • It can provide customized processing services according to customer needs, including design, material selection, processing technology and other aspects of personalized configuration to ensure that the specific requirements of customers are met.


  • It follows the ISO quality management system, controls and inspects each processing process strictly to ensure that product quality can meet customer requirements.


  • It has an efficient production management system, which can quickly respond to customers’ needs to ensure timely delivery.


  • It continues to invest in research and technological innovation, tracking the development trend of the industry, and constantly improving our processing capacity and technical level to meet the changing needs of customers.


As you can see, Richconn can implement a quality management system strictly, which can make sure that every process meets the standard requirements and that the product quality is stable and reliable in automotive manufacturing. It focuses on customer communication and cooperation, providing a full range of services and support from project requirements analysis to product delivery to provide timely and efficient support to customers and ensure customer satisfaction.


Try contacting Richconn for your CNC machining projects now↓↓↓


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