1. Cold forming of Subaru's front bumper spring
Subaru's front bumper springs have a one-time automation capability, and their cold forming machines have been developed to 12 claws.
The steel wire in the range of (0.3 to 14) mm can be formed at one time in the 8-claw forming machine. Development direction of forming process equipment:
1 Progressive forming speed, the main development trend is to improve the forming speed of equipment, that is, consumption efficiency;
2 Improve the durability of the equipment by improving the fineness of the equipment parts and enhancing the heat treatment effect.
3 Increase the length sensor and laser range finder to stop the automatic closed-loop control manufacturing process for the CNC forming machine. 2) The scope of the cold forming process. Large-diameter spring coil spring machine with a maximum size of 20mm, =2000MPa and a winding ratio of 5. The cold forming process of tapered or equal-diameter Minic-Block springs and eccentric springs is still limited.
1. Thermoforming of front bumper spring for Subaru
Large spring thermoforming process control ability. Since there is only the CNC2 shaft hot coil spring machine, the shape control has less three directions and the precision is poor; and there is no automatic bar material rotation control and adjustment mechanism, so the hot coil spring forming process and the ability are low. Therefore, the degree of precision of the spring and the degree of oxidative decarburization of the surface are also low.