There are various types and complex shapes of precision stamping parts for automobiles, and some adverse phenomena often occur during stamping production. The middle cover bracket is a key load-bearing connector of the integrated dashboard assembly in the car cab, and is an important component to ensure the stable and reliable use of various automotive instruments. Due to the high-speed rotation of high-power engines and the harsh driving conditions of vehicles, it is easy to cause strong vibrations and bumps in the driver's cab, resulting in open circuit or malfunction of instrument circuits and some functions in the front control panel. Therefore, the intermediate protective support must be able to withstand impacts, bending fatigue loads, and torque, thus requiring it to have sufficient bending strength, shear strength, and good toughness. In addition, if the part exceeds the allowable stress during forming, or if microcracks extend to a certain extent, causing tearing or tilting, not only will it waste material, but it will also cause the mold to be under eccentric load operation, accelerating mold aging.
Processing mechanical accessories, such as various stamping parts, sheet metal parts, welding parts, electronic devices, connecting pieces, etc. With the development of society, hardware products have become popular in every household. So, what are the principles for selecting stamping oil in the process of metal stamping processing?
(1) Silicon steel plate is a material that is relatively easy to cut. Generally, for the purpose of cleaning the workpiece, low viscosity stamping oil is used to prevent the generation of cutting burrs.
(2) When selecting stamping oil for carbon steel plates, the optimal viscosity should be determined based on the difficulty of the process, the method of applying stretching oil, and degreasing.
(3) Galvanized steel plates may undergo chemical reactions with chlorine based additives, so when selecting stamping oil for galvanized steel plates, attention should be paid to the possibility of white rust caused by chlorine based stamping oil. However, using Yida Borun sulfur based stamping oil can avoid rusting, but degreasing should be done as soon as possible after stamping.
(4) Stainless steel plates are materials that are prone to hardening, requiring the use of high oil film strength and anti sintering tensile oil. Generally, stamping oil containing sulfur chlorine composite additives is used to ensure extreme pressure performance while avoiding problems such as burrs and fractures in the workpiece.
(5) Aluminum and aluminum alloy plates should not be used with stamping oil containing chlorine or sulfur additives. It is better to use stamping oil with a neutral pH value.
The stamping oil suitable for the forming of sheet metal parts in automobiles and motorcycles is a pressing plate forming oil, which can also be used for the stretching and rolling processing of stainless steel parts. Combined with the characteristics of high strength and high adhesion, the single type stamping forming operation can better exert the surface smoothness and stretching forming effect of the workpiece, making it an essential oil for high difficulty mechanical stamping processing.
The stamping oil used in precision stamping parts plays a crucial role in the stamping process, and good cooling performance and extreme pressure and wear resistance have made a qualitative leap in improving the service life of molds and workpiece accuracy. The performance of stamping oil varies depending on the material of the workpiece.
