For the machining of the main bearing cap of the crankshaft, the special tool for broaching of the inverted and arranging machine clamps is used for the razor-type, and 713 pieces of indexable carbide coating (TiCN) blades are installed. The feed rate is 25m/min. 1750 pieces, the cutting allowance of broaching is 1.5~3mm.  In the processing of connecting rods of automobiles, the separation surface breaking process and the double-sided horizontal double-axis circular table surface grinding process are all high-quality and high-efficiency processing techniques commonly used in foreign connecting rod production.  High-speed hobbing of more than 100m/min in China is applied in some joint ventures. Dental caries, grinding teeth, and radial shaving also have different degrees of application, but most of them are poor in processing efficiency, precision and stability, and generally only achieve 8 levels of precision. Both Gleason and Oerlikon have introduced the latest design, analysis and measurement software for six-axis CNC equipment, making the spiral bevel gear design, machining, and tooth profile correction an intelligent closed-loop system. The gear measurement center is used for advanced measurement and automatic detection, which makes the measurement accurate, high precision and high efficiency. The spline tooth shape processing on several transmission shafts of the engine adopts double-station, paired configuration, squeezing and special tools for chipless machining, and reciprocating motion, and the spline tooth shape is extruded. Previous Next 3D Acoustic Panel,Sound Absorbing Panel,3D Decorate Acoustic Panel,Acoustic Panel Square Hebei RooAoo New Material Technology Co.,Ltd. , https://www.raacoustic.com
Shaft processing <br> <br> automotive crankshaft main journal, connecting rod journal are processed using duplex vehicle - broaching special tool. The cutter head has a diameter of 700mm, and the cutter disc is equipped with 40 pieces of carbide coated blades. Each 10 pieces is 1 set, the cutting speed is 150m/min, the fast forward speed is 4.6m/min, and the radial cutting allowance is 1.5. ~3mm. In addition, some parts of the shaft end of the outer cylindrical surface processing using the forming combination of external milling, reaming special tools, one pass to complete the outer circle and end face roughing, instead of single-blade turning process. 
<br> <br> gear cutting machining cylindrical gear <br> <br> mostly long coating using a high-speed foreign hob (cutting speed 110m / min or more) and the radial roller shaving cutter, shaving shaped to shaving instead of grinding. A large number of CNC cutting equipment is used to greatly improve the processing efficiency, and the machining accuracy can be stabilized at level 7 or above. Hard tooth surface cutting with hard alloy tools has become an important research field.
Straight bevel gear cutting <br> <br> abroad extensive use of precision forging, gear cutting process to retain high precision occasions, the current domestic forging process has been applied, but seldom used in automobile production, most of them or the use of cutting teeth Process.
Spiral bevel gear machining <br> <br> foreign mostly spiral bevel gear machining Cutting CNC milling machine, after the heat treatment using CNC lapping lapping machine; fine paired fitting or CNC milling machine, after the heat treatment using CNC grinding machine Grinding the teeth, the heat treatment deformation is better corrected, and the assembly is not matched. Hardened surface scraping technology has certain applications in spiral bevel gear machining.