High stress steels are those with high strength and hardness, and has great toughness and ductility of the alloy. An alloy elements are chromium, nickel, tungsten, aluminum, vanadium, manganese, etc., such as 300M steel is a good overall performance, widely used in low alloy high strength steel, with similar grades for 40CrNi2MoVA. Ultra-high strength steel has excellent mechanical properties, but also to bring some difficulties grinding, grinding its features are as follows: A) grinding force Ultra-high-strength steel ultimate strength greater than 1500MPa, grinding material deformation resistance to pressure, and thus the grinding force. For example: 300M steel grinding grinding grinding force than 45 steel grinding force 59%. 2) grinding temperature high High strength steel grinding wheel grinding force, the mechanical power consumed by more than 99% is converted into heat, resulting in a large number of grinding heat. Furthermore, high strength steel containing Ni, Mo, Si and other alloying elements, thus significantly reducing the thermal conductivity, such as room temperature, 45 steel thermal conductivity of 50.2W (m · K), and 300M steel as 26.6 W (m · K). Grinding heat, low thermal conductivity, thus the name of high strength steel grinding grinding temperature is high. Table 01 shows that 45 steel grinding grinding grinding 300M steel use ratio is much larger, and the grinding temperature is much lower.
Profile Internal Grinding , which consists of main and auxiliary stations composed of two parts, the host is fully enclosed structure, the bed has a versatile bench body on the right, the left has a wheel frame and slide, upper CCD detector devices, electrical cabinets located in the host rear and one composed with the host; Part of the auxiliary station has suction device, cooling device, air balance and brake controller composed of one level. The utility model is the application of image recognition technology, set machine online testing, online compensation, wheel dressing and an open-line multi-axis multifunctional digital control precision grinding machines. The multi-axis digital control and image recognition processing integration, can control up to eight axes, including seven servo rotary servo motor and a linear motor, a maximum of six-axis can be realized, and is able to control the axis different combinations. The utility model has a nice shape, suitable for human characteristics of strong, suitable for all kinds of precision parts machining complex contours.