Talking about the matters needing attention in the production of automobile parts and components?

2019-09-27 16:46:10

The drawing oil for automotive parts belongs to metal processing oil, which is suitable for ultra-high strength stretch forming, pipe drawing, punching and shearing, broaching, etc. Stamping and drawing oils are divided into water-soluble, metal and aluminum stamping and drawing oils.

1. The greasy property of stamping drawing oil: this is the serious effect of drawing oil, and the poor greasy property will lead to workpiece splitting, plate and metal sintering, product scratches, severe wear and tear of die, loss of die life.

2. Cooling property of drawing oil for stamping: There are many identities of heat generated in stamping process, the heat of conflict between die and data, and the heat of plastic deformation of data are all expressed by means of processing heat. When automobile parts are especially processed parts with disorderly shapes or materials with large plastic deformation resistance, the heat will be more intense. If this heat is not removed or not restrained, the heat will accumulate on the die, which will make the temperature of the die rise continuously, the die expand further, and between the punch and the die. The empty space will be reduced, the conflict and the stress applied to the data will be increased, and some of them will suffer from high temperature, even slippery film rupture, which will then constitute sintering, pulling and cutting faults. In this environment, the use of water-soluble punching oil may or may inhibit the onset of heat, especially in the areas of high-speed continuous behavioral processing and high-speed continuous automated processing, deep drawing of stainless steel or high-speed processing of easy-to-pull cans, and more use of water-compatible punching oil with good cooling.

3. Anti-rust property of stamping drawing oil: Parts processed by stamping are usually left intact for a long time. In order to keep them from rusting during the period of abandonment, we beg for excellent anti-rust property of stamping drawing oil. Because the greasy oil used in stamping process has strong adsorbability, it adheres to the oil film which is difficult to damage on the metal surface, so it has the anti-rust effect if it is abnormal. However, its role is based on the nature of greasy oil and processing conditions are not abnormal and not abnormal, other parts are also based on the abandoned environment is not abnormal and not abnormal, so in the harsh environment and storage time forever, the anti-rust of oil begged for higher.

4. Weldability of drawing oil with oil in stamping: In order to simplify the process and improve the power, it is necessary to beg for drawing oil to have the effect of welding with oil without washing. Occasionally, automotive stampings rust locally during welding due to the adhesion of drawing oil. Some oils produce harmful gases during welding and affect welding strength. The above results do not occur during oil-bearing welding after stamping, which is abnormally serious for drawing oil.

5. Degreasing (washability) of drawing oil for stamping: It is attached to drawing oil for stamping parts. It is also one of the serious characteristics to select detergents and washing methods that can be or may be cleaned to end the washing process. The cost of washing is cheap and degreasing can be done in a very short time. Washing of stamping parts is not clean, which will affect the spraying and electroplating of the later process.

6. Manipulability of stamping drawing oil: Before stamping, brushing the drawing oil on the processing sheet at the necessary time and labor is harmful to the immediate power, so the brief end of the operation also becomes a nature of begging for the drawing oil. Especially for large standard parts, this nature is particularly serious, if from the point of view of maneuverability, even though the use of low viscosity drawing oil.