外文翻译切削刀具

外文翻译切削刀具内容摘要：

the corner radius is exactly 1/2 the tool39。 s diameter. This gives the tool a spherical shape at the tip. It can be used to cut with side of the tool like an end mill. TIP: The primary purpose of a ball end mill is to machine lofted surfaces. The spherical shape of the tool is able to move along any undulating surface and cut anywhere along the cutter39。 s ball end. As a ball can roll over a surface, a ball end mill can be used to cut any such surface. INSERT END MILLAn insert end mill is the same as a standard end mill but with replaceable carbide inserts. TIP: Insert end mills are designed to remove metal at higher rates than solid carbide. They e in a large range of diameters and are able to cut at a deeper depth of cut. This is fantastic but, when using these cutters, it is a good idea to calculate the horsepower required to make a cut. Piece of cake on your Haas control: There is a button on the front labeled HELP/CALC. Press this button once to get the Help menu, press it again to get the Calculator functions. Use the PAGE UP/PAGE DOWN keys to scroll between three pages: Trigonometry Help, Circular Interpolation Help, and Milling Help. Each one of these pages has a simple calculator in the upper left hand corner. On the Milling Help page, you can solve three equations:1. SFM = (cutter diameter [in.]) * RPM * / 12 2. (Chip load [in.]) = (feed [in. per min.]) / RPM / of flutes 3. (Feed [in. per min.]) = RPM / (thread pitch) With all three equations, you may enter all but one of the values and the control will pute and display the remaining value. To calculate the horsepower required for a cut, you must enter values for RPM, feed rate, number of flutes, depth of cut, width of cut, and choose a material from the menu. If you change any of the above values, the calculator will automatically update the required horsepower for the cut you intend. The next thing to consider when choosing cutting tools for a job is what material you are going to cut. The most mon materials cut in the metalworking industry can be divided into two categories: nonferrous and ferrous. Nonferrous materials include aluminum and aluminum alloys, copper and copper alloys, magnesium alloys, nickel and nickel alloys, titanium and titanium alloys. Common ferrous materials include carbon steel, alloy steel, stainless steel, tool steel, and ferrous cast metals like iron. Nonferrous metals are softer and easier to cut, with the exception of nickel and titanium. Ferrous metals, on the other hand, are generally harder in position and tougher to cut. Cutting tool material is one of the biggest decisions you39。 ll have to make when choosing a cutting tool. Most all of the cutters described above are available in three basic materials: highspeed steel, solid carbide, and carbide insert style. Almost all of the basic cutting tool materials can be used to cut almost all materials. It really boils down to performance. Highspeed steel cutting tools have very high toughness but lack wear resistance. Carbide, on the other hand, has a very high wear resistance but chips and breaks easily. Carbide will always be able to cut materials at higher speeds and feed。