Dressing skillsThe sharpening process is a sharpening process that grinds the abrasive grains of a superhard abrasive wheel. In this process, the need to remove the abrasive between the binder and abrasive wheel abrasive, grinding with a strong performance of the abrasive wheel prominent bonding agent, the formation of sharp cutting edge. Sharp must also remove small material from the pores of the grinding wheel surface to prevent the grinding force from acting on the grinding wheel from increasing and the grinding force on the grinding wheel to increase, which will cause vibration and surface burn. Without proper sharpening, even the best grinding wheels can not achieve the high quality and dimensional uniformity of the machined parts. In fact, when you invest in high-quality grinding wheel, in order to obtain high grinding performance, it is very good dressing it is very important. Shaping can be said to be part of the wheel preparation work, it is with the ordinary grinding wheel repair at the same time. For the superhard abrasive wheel, two processes are carried out separately, the first wheel to shape. In the use of superabrasive grinding wheel grinding, shaping is the use of plastic tools or rollers, repair sharp is often the use of a ceramic binder dressing rod, in the shaping is completed, the grinding wheel for sharpening treatment. In this case,It is important to ensure that the spindle bearings are at a certain temperature (such as a normal grinding wheel condition) before the grinding wheel can be trimmed and trimmed. This avoids damage to the part geometry and non-normal wear of the grinding wheel and dressing tool. Care must be taken with dressing tools because they are generally made of hard, abrasion-resistant but brittle diamond material and are very sensitive to minor cracks and crushing due to minor impact, stress. In this case,Because the diamond shaper itself is a tool, need to remain very sharp. The use of a dull finishing tool to dress the wheel surface will make the grinding wheel dull. In order to maintain a high-quality and sharp diamond dressing tool, at regular intervals, the need for 1/8 turn to rotate a single point or with the tip of the trimming tool. The number of rotations can be determined according to the trimming situation, according to experience, at least once a day rotation. For chisel heads and forming dressing tools, they are usually rotated 180 ° before they are dull. Most cylindrical grinding machines place the part and wheel on a horizontal line. The highest point of the outer circle of the part and the highest point of the outer circle of the grinding wheel are called the parts / grinding wheel contact point. The diamond dressing tool should dress the grinding wheel as close as possible to the part / grinding wheel contact point. It is even more important to dress the grinding wheel for the internal grinding machine with the diamond dressing tool near the highest point of the outer circle of the grinding wheel (ie the part / grinding wheel contact point at the time of grinding). Take minor trimIn order to reduce the dressing time, as if there is always want to choose a larger repair depth of the temptation. This is a very wrong idea. You must choose the most appropriate repair depth of the wheel dressing. Choose too much repair depth, will have a high cutting temperature, reducing the life of the dresser, but also the useful wheel layer excision. The end result is that both the dresser and the grinding wheel are damaged, which is counterproductive. The best dressing quantity is the rule that can restore the grinding wheel geometry and produce good grinding edge after repairing several times. With a single-point dressing tool, the diametral direction of the grinding wheel should be in contact with the 10-15 ° axis of inclination. This will allow the single-point dressing tool to produce a sharpened effect when rotated periodically. The trimming tool with multi-point contact does not need to be tilted at this angle. With the entire end face of the dressing tool being in contact with the surface of the grinding wheel. In this case,The traverse speed is the speed at which the dressing tool passes through the surface of the wheel during dressing. It requires the processing of surface roughness and metal cutting rate are played a key role. Lateral movement too slow will clog the wheel and damage the part's surface roughness and metal-cutting rate. Too slow the traverse speed can also cause the grinding wheel to vibrate and burn the part surface. Even faster horizontal movement speed can repair a good grinding wheel surface, improve grinding performance, increase grinding efficiency, reduce part surface roughness.