Have you seen the method of manufacturing rolling bearings? Although there are many types of rolling bearings, there are differences in their construction types, public service grades, data selection, and processing methods, but their fundamental manufacturing processes include the following: Bearing parts manufacturing - bearing parts introspection - bearing parts demagnetization, cleaning, rust - bearing assembly - bearing products introspection - bearing products demagnetization, cleaning - bearing products oil packaging drum products into the warehouse. The ferrule is the main part of the rolling bearing. Because of the variety of rolling bearings, the ferrule size, construction, manufacturing equipment and process methods of the different types of bearings are different. Because of the many processing steps of the ferrule, complicated process and high processing precision, the processing quality of the ferrule has a major influence on the accuracy, service life and function of the bearing. The original data for the manufacture of the ferrule is a cylindrical bar or tube. Currently, depending on the molding process, the rolling bearing ring generally has the following manufacturing processes. 1) (bar material) blanking-forging-annealing (or normalizing-turning (cold forming)-heat treatment quenching, tempering-grinding-part reflection-demagnetization, cleaning-submission assembly 2) (bar material, pipe material) blanking - cold head forming - heat treatment quenching, tempering - grinding - part reflection - demagnetization, cleaning - submission assembly 3) (pipe material) blanking - turning forming - heat treatment quenching, tempering - grinding - part reflection - demagnetization, cleaning - submission assembly 4) (bar material) blanking - cold (warm) extrusion molding - turning - heat treatment quenching, tempering - grinding - part reflection - demagnetization, cleaning - submission assembly Ferrule forming method After forging processing, it can eliminate the defects of metal connotation, improve the metal structure, make the metal streamline spread reasonably, and the metal has good density. The forging forming process is commonly used in bearing forming processes, and can process large products from an inner diameter of ~20mm to an extra large product of outer diameter of 5000mm. The common forging forming methods are: hot forging, cold forging, and warm forging. China is mainly hot forging. 2) Cold forming The cold rolling expansion process is a technologically advanced method that can improve the application rate of data, improve the compactness of metal structures, and adhere to the linearity of metal flow. It is a chipless processing method. Theoretically, the products of cold heading can be directly subjected to heat treatment and grinding without turning. At present, the cold rolling process is mainly used for medium and small deep groove ball bearings. The primary process is: 3) Turning molding In the bearing industry, the traditional turning forming skill is to use a special lathe to complete the forming process using a centralized process. However, because the equipment used in this method is difficult to adjust, the precision of the machine is low, and the data application rate is low, the process is being reduced. In summary, the bias of the ferrule forming process should be directed toward the metal material with high application rate, high production efficiency and high molding precision. Therefore, high-speed forging skills, cold expansion skills, CNC turning molding skills will be used more and more. Concerned about surprises Label: Method for manufacturing rolling bearings - ferrule forming Previous: How to extend the life of plastic shredder Next: Wireless monitoring instrument is more flexible in field application Piloted Aircraft Stop Countersink Cutters
Hss Straight Shank Twist Drill Bit-Piloted Aircraft Stop Countersink Cutters
Piloted Aircraft Stop Countersink Cutters (often called Micro-Stop Cutters, or Microstop Countersinks) are used to make precision countersinks to accept flush-head fasteners and are used throughout the aviation industry. Omega Technologies cutters are precision ground to exact tolerances to insure concentricity.
Cutters may be used in any micro-stop ''cage'' that accepts 1/4 - 28 threaded shank cutters. Select the pilot diameter that matches the pre-drilled hole, and the body diameter according to the diameter of the fastener head. Metric piloted aircraft stop countersink cutters and other sizes not listed here, can be quoted on request.
Countersink Drill Bit,Round Shank Countersink Drill Bit,5 Flutes Wood Countersink Drill,Countersink Drill Bit For Wood Changzhou Bomitools Co.,Ltd. , https://www.bomitools.com
At present, in the ferrule processing, there are the following molding methods: forging forming, turning forming, cold forming and cold (warming) extrusion. In the above molding method, forging forming processing is most common, accounting for about 80% of the total output. For some small general-purpose products, rod (tube) material can be directly turned and formed. Since the 1980s, some small and medium-sized enterprises in China have adopted cold-rolling and cold (warm) extrusion molding processes in the production of small and medium-sized ferrules.
1) Forging type
Hot forging processing is divided into: self-forging processing technology, press forging process, flat forging machine forging process and high-speed upsetting machine forging process due to differences in molding processing equipment.
Forging blanks (rings) - turning (except for channels) - è¾— expansion (ditch and chamfering) full diameter - soft grinding on both sides of the surface using cold ramming process and forging forming process, the accuracy of the product is affected by the accuracy of the equipment, To be affected by the precision of the forming mold.
With the development of scientific skills, CNC turning machines are agile and increasingly perfect. At present, some products with complex shapes and high precision requirements are increasingly using CNC turning forming skills. 