Highspeed machining in mold technology, technology is a key factor with the machine and tool use.In the case of domestic mold production now, the technology has largely restricted the application of high-speed machining of the mold. Partly because the time is short high-speed machining applications, there is no formation of more mature, systematic process systems and standards; on the other hand is a high-speed cutting technology test costs, the need to invest more money and a longer time.
High-speed die cutting technology include: (1) for high-speed cutting mold(tile cutter,glass cutter) technology test different materials at the reference speed milling process parameters foreign parts found foreign company’s tool is based on the standard of imported materials to do the test, it is recommended to use it parameters at high speed machining mold-made materials, the effect is more obvious differences. So using foreign cutting tools, in addition to the need to refer to the manufacturers to provide the parameters , the actual process test is also necessary. Domestic tool manufacturer rarely recommended the technology parameters of high speed milling, so choose domestic tool more necessary experiment, in order to obtain satisfactory process parameters.Had better choose the fixed manufacturer of cutting tools, through the test, the formation processing technology standard, and on this basis to optimize a set of suitable for the processing parameters of this enterprise, and incorporated into the enterprise standard.
(2) Mould cutting tool path, the way of feed and feed is the main content.Many cutting tool path in high speed cutting mould technology processing method is to reduce the tool wear and prolong the service life of the cutting tool, therefore cutting tool in high speed cutting feed path is much more complicated than normal processing.
High speed machining mould process should follow the following principles: (1) using small diameter cutter finish machining, cutting speed and decreased with the increase of material hardness.(2) to maintain relatively stable feeding and feed speed, continuous cutting load, reduce the mutation, slow to slow.Avoid direct vertical feed down have led to the collapse edge: slash trajectory feed milling force gradually increased, the impact on the tool and spindle is small, can significantly reduce the collapse edge;Spiral trajectory feed, more suitable for cavity mould high speed machining.(3) small feeding, knife cutting.Usually feed less than 10% milling cutter diameter, feed width of less than 40% milling cutter diameter.(4) keep uniform allowance for finish.5. Keep cutting.
According to the above rules, the commonly used feed path means has the following kinds: (1) avoid straight corners milling movement;With helical feed cutting on the corner, and keep the smooth of cutting load.(2) to avoid the workpiece outside the feed and return movement, directly from the depth profile to get to the next.But the oblique gradually into the cut to cut or a spiral line.(3) a constant feed each blade, or in a spiral line cycloidal path of feed processing plane, and keep cutting.Hole processing high-speed feed milling, when completed, not only can improve the surface quality, but also prolong tool life.(4) when the contour machining in a horizontal plane (contour), the depth of each layer feed is the same.Gradually in depth into the next, feed roll.(5) processing groove shape such as small size, the selection of shape is less than the size of the cutter diameter, or cycloidal path in a spiral line feed, keep cutting.The tool path used in high speed cutting mould processing policy need programming, the path of the complex manual programming difficulty and workload is very big, to a certain extent, affected the application of high speed cutting mould technology, so it’s best to realize automatic programming software.High speed cutting finish machining of the CAM programming, automatic programming software need to adapt to the production timely.Delcam company a few years ago began high-speed machining programming technology research, the development of high speed cutting automatic programming software module PowerMILL;Mould processing use the largest MasterCAM company also developed a high speed cutting automatic programming HSM software modules.Through the automatic programming software module, above mentioned method can achieve high speed cutting path.At present domestic software enterprises are also in the development of high speed cutting automatic programming software modules.
Langfeng metallic material Ltd undertake the mission”denefiting all under the heaven”,creating value for customers,help employees grow and help more people progress and development is our firm goal.We specialize in military new materials of rocket systems , coating materials, carbide, cermet cutting tools and development of raw materials, high speed steel twist drill.production and sales.Companies advocating green ideas, energy efficiency is the direction of the company, according to the needs of the company’s strategic development, the establishment of an industrial microwave division which is responsible for product development,and production sales.
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