Vantaggi e manutenzione della pressa idraulica

I. Advantages double action press

Compared with the traditional stamping process, the hydraulic forming process has obvious technical and economic advantages in reducing weight, reducing the number of parts and dies, improving stiffness and strength, and reducing production costs, etc. It is increasingly used in the industrial field, especially in the automotive industry.

In the automotive industry as well as in the aviation and aerospace fields, reducing the mass of structures to save energy in operation is a long-term goal and one of the trends in the development of advanced manufacturing technology. Hydroforming is one of the advanced manufacturing technologies to achieve structural light weighting.

The basic principle of hydroforming, also known as “internal high pressure forming”, is to use a tube as a blank and apply an ultra-high pressure liquid inside the tube while applying axial thrust to the ends of the billet to make up the material. Under the joint action of the two external forces, the billet material undergoes plastic deformation and finally fits with the inner wall of the mold cavity to obtain hollow parts that meet the technical requirements in shape and precision.

II. Advantagesdouble action press

For hollow variable-section structural parts, the traditional manufacturing process is to stamp and form two halves first, and then weld them into a whole, while hydroforming can form hollow structural parts with variations along the component cross-section in one go. Compared with the stamping and welding process, hydroforming technology and techniques have the following main advantages:

• Reduced mass and material savings. For typical parts such as automobile engine brackets and radiator supports, hydroformed parts are 20% to 40% lighter than stamped parts; for hollow stepped shaft parts, the weight can be reduced by 40% to 50%.Reduce the number of parts and molds, and reduce the cost of molds. Hydroformed parts usually need only 1 set of molds, while stamping parts mostly need multiple sets of molds. Hydroformed engine bracket parts are reduced from 6 to 1, and radiator support parts are reduced from 17 to 10.double action press

• The amount of welding for subsequent mechanical processing and assembly can be reduced. In the case of radiator bracket, for example, the heat dissipation area is increased by 43%, the number of welding joints is reduced from 174 to 20, the number of processes is reduced from 13 to 6, and the productivity is increased by 66%.

• Improve strength and stiffness, especially fatigue strength, such as hydroformed radiator support, its stiffness in the vertical direction can be increased by 39%, the horizontal direction can be increased by 50%.double action press

• Reduced production costs. According to the statistical analysis of the applied hydroformed parts, the production cost of hydroformed parts is 15%~20% lower than that of stamped parts on average, and the tooling cost is 20%~30% lower.

III. Maintenance system double action press

1、Lubrication maintenance according to the lubrication requirements of the machine.

2、After each year of work, the hydraulic oil should be released from the bed tank to clean the tank, refill the filtered hydraulic oil, the oil volume should be determined at the 3/4 height of the oil mark.

3、The oil filter net on the oil suction pipe must be cleaned or washed regularly.

4、Check regularly whether the handle, twist and button are damaged.

5、The motor must be kept clean, and the air inlet mesh of the motor must be kept in a good ventilated state regularly and not blocked.

6、Every day, 10 minutes before the end of the day, the machine oil lubrication and scrubbing clean machine.

7, non-operators are strictly prohibited from operating the equipment, usually must be done away from the machine stop.