internal high pressure hydroforming production line

Short Description:

Internal high pressure forming, also called hydroforming or hydraulic forming, is a material forming process that uses liquid as forming medium and achieves the purpose of forming hollow parts by controlling internal pressure and material flow. Hydro Forming is a kind of hydraulic forming technology. It is a process in which the tube is used as billet, and the tube billet is pressed into the mold cavity to form the required workpiece by applying ultra-high pressure liquid and axial feed. For parts with curved axes, the tube billet needs to be pre-bent into the shape of the part and then pressurized. According to the type of forming parts, the internal high pressure forming is divided into three categories:
(1) reducing tube hydroforming;
(2) tube inside bending axis hydroforming ;
(3) multi-pass tube high-pressure hydroforming.

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Advantages and Applications

The hydroforming component has light weight, good product quality, flexible product design, simple process, and has the characteristics of near-net forming and green manufacturing, so it has been widely used in the field of automotive lightweight. Through effective section design and wall thickness design, many auto parts can be formed into a single integral component with complex structure by hydroforming of standard tubes. This is obviously much superior to the traditional stamping and welding method in terms of product quality and simplicity of the production process. Most hydroforming processes require only a punch (or hydroforming punch) that is consistent with the shape of the part, and the rubber diaphragm on the hydroforming machine plays the role of the usual die, so the die cost is about 50% less than the traditional die. Compared with the traditional stamping process, which requires multiple processes, hydroforming can form the same part in just one step.

Compared with stamping welding parts, the advantages of pipe hydroforming are: saving materials, reducing weight, general structural parts can be reduced by 20% ~ 30%, shaft parts can be reduced by 30% ~ 50% : Such as car subframe, the general weight of stamping parts is 12kg, internal high pressure forming parts are 7 ~ 9kg, weight reduction of 34%, radiator support, general stamping parts weight 16.5kg, internal high pressure forming parts are 11.5kg, weight reduction of 24%; Can reduce the amount of subsequent machining and welding workload; Increase the strength and stiffness of the component, and increase the fatigue strength due to the reduction of solder joints. Compared with the welding parts, the material utilization rate is 95% ~ 98%; Reduce production costs and mold costs by 30%.

hydroforming equipment is suitable for manufacturing aerospace, nuclear power, petrochemical, drinking water system, pipe system, automotive and bicycle industries of complex shaped section hollow components . The main products in the automotive field are automobile body support frame, auxiliary frame, chassis parts, engine support, intake and exhaust system pipe fittings, camshaft and other parts.

Product parameter

Norminal force[KNI		16000>NF>50000	16000	20000	25000	30000	35000	40000	50000
Daylight opening[mm]		Upon request
Slide stroke[mm]			1000	1000	1000	1200	1200	1200	1200
Slide speed	Quick descend[mm/s]
	Pressing[mm/s
	Return[mm/s]
Bed size	LR[mm]		2000	2000	2000	3500	3500	3500	3500
Bed size	FB[mm]		1600	1600	1600	2500	2500	2500	2500
Height from bed to the ground [mm]
Motor total power [KW]