【正文】 ng is to remove the excess material scattered. Only in surface roughness of the finishing time is important. Unlike rough, finishing the slow processing speed. Chip off with the Dknives, better than the standard point of knives, in Figure 910 A, is designed for cutting depth and design, for example, a 5 / 16inch box cutter blade of the maximum depth of cut 5 / 16 inches, and an 8 mm square block will be cutting knives Corner to 8 mm deep, this tool will be very fast Corner block removal of surplus metal. Slice merits of the deal with that, in a small blade was close thinning. This tool is also a very good finishing tool. But please do not confuse the thin band Tool and Tooloff crumbs. A chipoff is actually counterproductive tool to cut off the chip flakes. And the standard tool of the Corner, pared with chip breaking tool for the Corner is in its on and get grooving, Figure 910 B. This tool generally used to block the Corner of rough finishing. While this tool Corner blocks have sufficient strength to carry out deep cut, but the longer the chip will cut off the plane around after shedding a lot of accumulation. Chip is so because the tangles and sharp, and the operator is a dangerous, so this is a chip from the need to address the problem. Double, or triple the speed of the feed will help to resolve, but this will require greater horsepower and still easily chip very long. Because of the slow processing, however, this action will be a good tool but also because of the small root radius of the processing will be a smooth surface. Especially when processing grey cast iron especially. Cutting Tools appearance Appearance, sometimes called the contour of the floor plan is where you see the vision or the top down or look at the surface. Figure 911 illustrate some of the most mon form, those who could be on the cutting tools and grinding out successfully be used. National Standards in its threadcutting tool on a tiny plane can be as GB thread, the AngloAmerican unity and international standards screw threads. A special tool to outline the thread of the plane is to be ground into the correct size. Tools Corner fixed Corner to a number of knives around the 15 degree angle while the other knives and cutting of the straight. When the mill in Figure 912 A and 912 B, for example by the space and the inclination, these must factor into consideration in the review. Figure 912 B Tool Corner block the angle is zero, pared with 912 A map is a heavier cutting tools, and the 912 A map will take more heat. The same amount of space in front of the two cases are the same. Tool Corner block ponent and the angle Figure 913 Tool Corner block an integral part of the name, and plans 914 point of the name, is the machinery industry standards. Grinding Wheel Tool Corner Block When the cutter is fixed in the middle of Dao, Tool Corner block can not be the grinding. Can not do so for the reasons: because of the large number of Dao and extra weight, making Corner together with the grinding is a clumsy and inefficient way. Too much pressure could be added to round on the sand. This can cause the wheel Benglie wheel or because of overheating and the rift on the Corner Tool damage. There are grinding to the possibility of Dao. Grinding A craftsman in his toolbox, should always be a small pocket lining grinding tool. Alumina lining a grinding tool as carbon tool steel and high speed steel tool tool. The silicon carbide lining grinding tool grinding carbide cutting tools. Cutting Tools should always maintain smooth and sharp edge, so that the life expectancy of long knives and processing the surface smooth. Cutting tool materials Carbon tool steel cutter Corner block usually contains percent to percent of carbon. These make use of the cutting tool in their tempering temperature higher than about 400 degrees Fahrenheit (205 degrees Celsius) to 500 degrees Fahrenheit (260 degrees Celsius) remained hardness, depending on the content of carbon. These temperature higher than that of carbon tool steel cutter will be changed soft, and it will be the cutting edge. Damaged. Grinding blades or cutting speed faster when using carbon tool steel cutter will be made of the blue, this will be in the imagination. Tool will be rehardening and tempering again. So in a modern processing almost no carbon as a tool steel blade. Lowalloy steel cutting tool in the carbon steel tools added tungsten, cobalt, vanadium alloying elements such as the consequences. These elements and the hardness of highcarbon carbide. Increased tool wear resistance. Alloy tool steel that is to say there will be no hard and fast with hot red when the knife39。s edge can still continue to use it. Lowalloy steel cutting tool is relatively small for a modern processing. Highspeed steel with tungsten of 14 percent to 22 percent, or Containing % to 6% of the WMo (molybdenum which accounted for 6 percent to 91 percent). From highspeed steel tool made of a rigid heat, some highspeed steel also contains cobalt, which is formed of rigid factor. Cobalt containing highspeed steel to