Custom Precision Auto Spare Machine Parts Die Casting Stainless Steel Straight Right Angle Miter Cold Forged Forging Spiral Zerol Helical Hypoid Bevel Gear
Product Description
We can process according to the drawings you provide
Gear processing process
1. Forging
Hot die forging is still a widely used blank forging process for automotive gear parts. In recent years, cross wedge rolling technology has been widely used in shaft machining. This technology is especially suitable for making blanks for complicated stepped shafts. It has high precision, small machining allowance and high production efficiency.
2. Normalizing
The purpose of this process is to obtain the hardness suitable for subsequent gear cutting and prepare for the final heat treatment, so as to effectively reduce the heat treatment deformation. The gear steel used is usually made of 20CrMnTi. Due to the great influence of personnel, equipment and environment, the general normalizing makes it difficult to control the cooling speed and uniformity of the workpiece, resulting in large hardness dispersion and uneven metallographic structure, which directly affects metal cutting and final heat treatment, making the thermal deformation large and irregular, and the quality of parts uncontrollable. Therefore, isothermal normalizing process is adopted. Practice has proved that the adoption of isothermal normalizing effectively changes the disadvantages of general normalizing, and the product quality is stable and reliable.
3. Turning
In order to meet the positioning requirements for high-precision gear processing, CNC lathes are used to process gear blanks, and mechanical clamping is used without regrinding the turning tool. The simultaneous processing of the hole diameter, end face and outer diameter is realized under one clamping, which not only ensures the perpendicularity requirements of the inner hole and end face, but also ensures the small size dispersion of large batch of gear blanks. Thus, the accuracy of gear blank is improved and the machining quality of subsequent gears is ensured. In addition, the high efficiency of CNC lathe processing also greatly reduces the number of equipment, which is economical.
4. Hobbing and gear shaping
The equipment used to process the gear is still a large number of ordinary hobbing machines and gear shapers. Although it is convenient to adjust and maintain, the production efficiency is low. If large capacity is achieved, multiple machines need to be produced at the same time. With the development of coating technology, the re coating of hobs and slotting tools after grinding is very convenient. The coated tools can significantly improve their service life, generally by more than 90%, effectively reducing the number of tool changes and grinding time, with significant benefits.
5. Shaving
radial shaving technology is widely used in the production of large quantities of automobile gears because of its high efficiency and the easy realization of the requirements for the modification of the designed tooth profile and tooth direction. Since the company purchased the special radial shaving machine of Italian company through technical transformation in 1995, the technology has been applied maturely and the processing quality is stable and reliable.
6. Heat treatment
Automobile gears require carburizing and quenching to ensure their good mechanical properties. Stable and reliable heat treatment equipment is essential for products that are no longer subject to gear grinding after heat treatment. The company has introduced the continuous carburizing and quenching production line of German Louyi Company, and has obtained satisfactory heat treatment effect.
7. Grinding
It is mainly used to finish the inner hole, end face, shaft outer diameter and other parts of the gear after heat treatment to improve the dimensional accuracy and reduce the form and location tolerance.
Related products
Transmission parts
Gearbox / Speed reducer
Company Profile
Our company has perfect management system and complete detection means, including physical and chemical laboratory, spectrometer, ultrasonic flaw detector and magnetic particle flaw detector, tensile testing machine, Brinell hardness tester, CMM and other detection equipment. The forging processing equipment is complete, including 2 2500T and 4000T press forging production lines; Machining equipment includes: machining center, CNC lathe, CNC gear shaper, milling machine, drilling machine, planer and other processing equipment of more than 60 sets. Heat treatment equipment: 6 box type electric furnaces; The heating equipment includes 3 medium frequency induction furnaces and 3 natural gas heaters. The excellent quality, excellent service and mutual cooperation make our customers all over the world and get good comments from users.
The main products are forged parts within 200kg in engineering machinery, new energy equipment, mining machinery, agricultural machinery, petroleum machinery, heavy trucks and other fields. It produces and sells gear box forgings, hydraulic cylinder forgings, reducer forgings, forging processing, gear ring forging, wheel forging, hook forging and other products. It is a well-known forging manufacturer and die forging manufacturer in the industry.
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