What happened to the mold sticking when drawing the aluminum pipe? How do you make the mold?
1. apply mold release agent on the mold.2. the necessary taper shall be taken into account in the design of the die.3. punch opening and exhaust hole.4. charging and discharging device.5. improve the mold finish.6. mold surface treatment of titanium.The main purpose of the mold surface treatment is to improve the surface hardness, wear resistance and corrosion resistance, etc., so as to improve the quality of mold products, and extend the service life of the die. Reasonable application of surface treatment technology to obtain high precision mold surface is the necessary condition of high precision and good surface quality products. The cost of the surface strengthening process is lower, but the service life of the die can be improved by 5~10 times or even several times, and the economic benefits are obvious.According to the present application status of China's mold surface treatment technology, I published by the user survey found that, at present, surface treatment technology of mold manufacturing enterprises mainly used or in surface hardening, carburizing / traditional nitrogen technology, electroplating and chemical plating technology, and these technologies have varying degrees of surface hardness distribution all the heat treatment deformation and other aspects of the problem difficult to solve. For the future technological transformation, the common concern is the application of new technologies, such as surface coating technology, TD coating treatment technology, laser surface strengthening technology and electron beam strengthening technology. Below we specially invited several industry technical experts, respectively, the user's attention to these deep into the discussion, and hope to benefit the general mold enterprise technical upgrading.
Such as tensile material, material circle diameter, tensile concave convex mold with the size, size, material sticking position, whether or not to pull the thin stretch, lubricating oil type and so on, which is the hard alloy you say ah, we generally use outside processing, not only tungsten steel, pull thin shallow drawing himself with the lathe. Their hard alloy quenching, the workpiece material is easy to stick, 0.05MM does not produce sticky material, the size of R according to the general drawing coefficient depends on the material, if the material is allowed, R can be a little friction, the area is small, the workpiece pulled out a little too smooth, the temperature is not too high to die I also met sticky material problems, 0.5MM aluminum plate, 7 points pulled into a pen inside the ink tube, which is always a sticky material, later changed the way the size of the die,
1. apply mold release agent 2. on the mold. The necessary taper shall be taken into account when the die is designedAskWhat angle is that design?Chasing the answerSmall angle, in order to facilitate the separation of the workpiece and the die. Theoretically, the greater the angle, the better the release, but without affecting the size of the workpiece as the premise, there is no fixed degree. Tests are necessary.
