CNC Machining Metal Gears
What is CNC machining metal gears?
CNC machined metal gears are basic transmission components in the machinery manufacturing industry. They transmit torque through gear meshing and can be transmitted together with other parts to achieve multiple functions.
However, high-precision gear manufacturing, especially when there are many teeth and large diameters, requires strict gear hobbing processing, and the rough machining, fixtures, tools, machine tools and other links and environments must be well controlled.
The functions of CNC machine gears
The role of CNC gear processing is significant. It enables the precise manufacturing of gears of various specifications and accuracies to meet the requirements of different mechanical systems. By precisely cutting and shaping, it ensures the accuracy of the gear tooth profile, enhancing transmission efficiency and stability. It is widely used in areas such as automotive transmissions and industrial mechanical drives to effectively regulate and transfer rotational speed and torque. For instance, in machine tools, it guarantees processing accuracy.
The advantages of CNC machine gears
It offers high precision, ensuring gears fit precisely and operate smoothly.
It enables complex gear designs with ease, meeting diverse needs. The processing is highly efficient, reducing production time and costs. Also, it provides consistent quality and repeatability.
For instance, it can create gears with fine tooth details for improved performance in machinery, enhancing overall system reliability and functionality.
How to process the gears by CNC ?
Preparing the appropriate blank material first, then use the CNC lathe to turn out the general shape, then mill the tooth groove profile, and then hob or shape the gear to form a precise tooth shape. Sometimes grinding is also performed for higher precision and quality.
The processes involved are materials, turning, milling, hobbing/shaping, grinding and quality inspection. Turning requires precision control, and hobbing can efficiently produce standard tooth shapes.
The suitable materials of CNC machining gears
45 steel: has good comprehensive mechanical properties, relatively low price, and is widely used.
20CrMnTi: is a commonly used carburized steel. After heat treatment, it has high surface hardness, wear resistance and good core toughness.
40Cr: has high strength and excellent performance after quenching and tempering.
Stainless steel: such as 304 stainless steel, has good corrosion resistance.
Bronze: such as tin bronze, has excellent wear resistance and friction reduction.
Why choose us ?
We are proud to offer highly customizable CNC services. Our company has accumulated over 20 years of rich and extensive experience in the field of CNC processing. We are equipped with a diverse range of advanced processing and precise inspection equipment. Moreover, we have established a comprehensive and mature set of processing procedures. This enables us to strictly control every production link and guarantee that each product we deliver is complete and flawless, meeting the highest quality standards and your exact requirements.
Common types of gears
1. According to shape, there are cylindrical gears, bevel gears, etc.
2. According to the shape of the tooth line, there are spur gears, helical gears, herringbone gears and curved gears.
3. According to the shape of the gear tooth surface, there are external gears and internal gears.
4. According to the manufacturing method, there are cast gears, cutting gears, rolling gears, sintering gears, etc.
5. According to the hardness of the gear tooth surface, there are soft tooth surface gears and hard tooth surface gears.
About us
We are your best manufacturing partner, providing a series of solutions to help from design to parts processing.
With rich experience and resource capabilities, we can meet any of your production project needs and ensure that the parts meet high quality standards.
We provide customized parts processing and manufacturing, covering CNC processing, die casting, sheet metal processing and surface treatment.
What are the processes of CNC gear machining:
1. Blank material, such as 45 steel, 20CrMnTi, etc.
2. CNC lathe turning, preliminary shaping.
3. Milling the tooth groove profile.
4. Hobbing or shaping the gear to accurately shape the tooth shape.
Grinding is performed when necessary to improve accuracy and surface quality.
5. Finally, quality inspection is performed.
Material: Commonly used are 45 steel, 40Cr, stainless steel, bronze, etc.
Product inspection (first inspection - process inspection - finished product inspection)
FAQ
Q: How accurate can CNC machined gears be?
A: Usually micron-level accuracy can be achieved, depending on factors such as machine tool performance, tool quality and process settings.
Q: Is it expensive to CNC machine gears?
A: The cost will be affected by factors such as gear complexity, material selection, and processing batch. Small batches are higher and large batches are lower.
Q: How long does it take to machine gears?
A: The time depends on the size of the gear, the accuracy requirements and the complexity of the process, ranging from a few hours to several days.
Q: Are CNC machined gears durable?
A: If the material is suitable, the processing accuracy is high and the subsequent processing is proper, CNC machined gears usually have good durability.
Q: Can special-shaped gears be machined?
A: Yes, CNC machining has high flexibility and can process a variety of special shapes and non-standard gears.
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