Parameter input The thermal model making module is based on the existing machining speed optimization and acceleration smoothing procedures. In addition to the material removal rate and the lobe lift distribution map, this program also considers the traditional machine tool performance variables. The camshaft designer provides a lift profile in how many lifts per degree around the circumference of the lobe. Grinder manufacturers provide machine dynamic limits such as wheel feed acceleration and runout, headstock speed and runout. The three main parameters required to generate a thermal model module are: Cr value - this empirically derived value represents the material removal capability of the grinding wheel, with the camshaft material and the grinding wheel material and bonding agent (cubic boron nitride or CBN material, the grinding wheel with ceramic bonding agent is currently used for grinding The type of grinding wheel that is most commonly used for cutting camshafts. These Cr values ​​are derived from machine tool force and power measurements. The "C" component represents the abrasive grain density (abrasive to binder ratio) and the "r" represents the wheel surface topology (scratch width versus scratch depth). Heat Distribution Constant - This is the percentage between the heat entering the part and the heat taken away by the coolant. The heat distribution constant is different for oil and water based coolants, respectively. Temperature information Previous Next
Band Saw Machine is mainly used for sawing H beam, C channel, I beam in steel structure industry.
Our Beam saw cutting machine is easy to operate, can fully satisfy customers` needs.
Machine feature as below:
1. The
feeding of work piece is driven by carriage.
2. High sawing speed with feeding speed adjusted
automatically,
3. Automatic rotating angle
positioning function,
4. Use touch screen to input the dimensions of
the workpiece
SF Beam cutting saw can save your man-made marking process, increases production
efficiency!
Band Saw Machine,Beam saw cutting machine,Beam cutting saw,H beam cutting machine,C channel cutting machine Shandong EN FIN CNC Machinery Co., Ltd , https://www.sdfincncmachine.com
On the surface, modeling training for a manufacturing process as complex as camshaft grinding does not seem intuitive at all. However, it is a relatively simple process of entering known and published machine tools, grinding wheels and coolant values.
Feed Increment - This is the depth at which the grinding wheel cuts into the lobes per blade (usually the smallest at the end of the grinding wheel/bevel contact area) and is different for roughing and finishing. Instead of progressively feeding the grinding wheel to the incremental depth, the grinding wheel feeds directly to the incremental value and will maintain this depth around the entire lobes. This feed increment is generally greater for the roughing cycle than for the finishing cycle, and it is directly related to the material removal rate.
There are two color profiles produced by the thermal model. A display showing the actual lobed shape with a color temperate band showing the thermal distribution under the lobed surface as the camshaft turns one turn (see Figure 1). The temperature peak toward the center of the lobe indicates the area where the problem occurred.
