With such a selection of stamping oil, it is difficult to think about the quality of stamping parts!
November 26, 2021
I have come into contact with customers who do stamping of various materials, and some customers do not use stamping oil at all, but use engine oil instead. It is also to save surface costs. For general materials, some waste oil or engine oil may be used. Use professional punching oil. In the stamping process, due to the different materials to be stamped, the working speed of the stamping machine used is different, the stretch coefficient of the workpiece is different, the shape of the workpiece is different, and the subsequent process requirements are different. These factors also determine the stamping oil they use. It's different.
The role of stamping oil 1. If the silicon steel sheet is stamped, the silicon steel sheet is a material that is relatively easy to punch. Most of them require that the surface of the workpiece be quickly dried after punching, and no oil remains. At the same time, it is necessary to prevent burrs during punching and prolong the service life of the mold. Therefore, if it is a stamping oil for silicon steel sheet, it is recommended to choose a stamping oil that has a slightly higher viscosity and can be volatile, does not produce carbon deposits after annealing, and has a certain anti-rust performance. 2. If you are stamping tin-plated steel, it is recommended to consider choosing a stamping oil that does not contain chlorine to prevent the surface of the workpiece from whitening. 3. If it is punched aluminum or aluminum alloy, it is recommended not to use the punching oil containing chlorine and sulfur additives, otherwise it is very easy to be oxidized. Generally, it is recommended to use a punching oil with a neutral pH. 4. If the stainless steel plate is stamped, work hardening is likely to occur during the stamping process. It is recommended to choose a stamping oil with high oil film strength and good sintering resistance. The stamping oil must have a certain viscosity and good cooling properties. 5. For punching copper or copper alloys, it is recommended not to choose punching oil containing chlorine and sulfur additives, but to choose punching oil with oily agents and good fluidity. 6. If you are punching stainless steel, it is recommended to use stainless steel special punching oil, which requires high extreme pressure, and the workpiece is free of burrs and has obvious protective effects on the mold. When selecting stamping oil, it is recommended to communicate the following specific issues with the stamping oil supplier: The more you understand, the higher the effect will be. 1. What kind of stamping process: punching? Deepen? Deepening and thinning? bending? 2. The material of the workpiece: what kind of steel? Aluminum, copper, alloy, silicon steel sheet? 3. What is the stretch coefficient? How many times to deepen? 4. What is the tonnage of the punching machine? Speed of work? 5. What is the shape of the workpiece? When trying to deepen, what is the problem that the scrap shows? Suppliers must also understand the actual situation of customers in response to these specific issues, in order to recommend suitable stamping oils more accurately. At present, the stamping industry is still accustomed to using oil-based stamping oil. In most cases, it is necessary to recommend oil-based stamping oil formulations according to the factory’s usage habits.
