Friday, May 14, 2010

New Cast Iron Face Milling Cutter


China Suppliers
China Suppliers

Mitsubishi recently introduced a new, efficient and economical processing of cast iron face milling AHX640W, its features are: blade shape for the 7-angle, two surface knife angle 14 can be shared, economy much more than the general square, triangular blade; blade with double front, not only guarantee a certain intensity, but also to decrease cutting force and cutting power consumption reduction, economy further improved; blade structure of thick, high rigidity, surface structure is reasonable, can withstand a large cutting load the feed, increase the cutting efficiency; reasonable cutter structure can be installed over the number of multi-blade, blade several more loads per share less tooth can achieve efficient processing of large feed; to identify the use of the knife angle, in all corners of the gold painted edge layer surface, indicating the knife horn, easy to use.

    

    Face Milling Cutter blade installation method, generally wedge-type fixed and two screws. Wedge usually fixed, the installation required 5-6 parts, massive structure, accounting for more than the volume of space, so must the diameter of the cutter blades can be installed fewer. Screw-type, more blades can be installed, but to ensure that sufficient clamping force to take additional measures. AHX640W is used to create a new wedge-type fixed structure, it is only two parts; wedge and screw. Its unique wedge structure, which still make a bulge, withhold the blade in the hole, in the high-speed cutting, to prevent the blade flying out of the new structure, such as compact, the number of blades can be installed more. banana connector

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    New models can be installed AHX640 face milling cutter blade number is much, while also increasing the number of teeth involved in cutting the total cutting force will increase, should require a rigid machine tool and the workpiece is higher. SE445 and the ASX445, OCTACUT Mitsubishi has developed high-quality face milling cutter, is the difference between them and the AHX640W processing of steel and can process both cast iron and other materials, versatility is the biggest characteristic wide. They use the blade is 20 ° positive angle blade, sharp cutting, low cutting forces. When the processing of different workpiece materials, they can choose different blade materials. OCTACUT type, diameter 180 the following, smaller diameter, in addition to still be used as a multi-plane milling outside the processing steps can be processed surface, cavity, chamfer, bevel, hole, etc.. earphone jack

    

    The general state of more uniform surface finish is available with rough semi-angle of 20 ° before the MK-type chip-breaker inserts, to improve the machined surface finish, can still, according to the number of teeth with cutter knife cutting conditions, fitted with a revised one to several pieces Light edge of WK-type blade. these three materials used in blades are developed for this particular MC5020.

    

    Common with ordinary gray cast iron, cast iron and ductile iron second category, the former low intensity, easy process, but because of short pieces that collapse chip type of chip breaking, resulting in this type of chip, the cutting force change greatly, vibration, blade material required seismic performance, whereas the latter strength, chip resistance of large chips will stretch, and is therefore a relative sliding blade rake to rake face temperature rises, causing the rake face wear, the wear parts closer than when cutting steel blade, so blade vulnerable. On the other hand it is the chip than the short-cut steel, cutting force is also fluctuation, vibration caused by cutting may also produce chipping damage to the blade. Ductile iron as hard pearlite matrix, the blade easy wear, the soft matrix of ferrite, the blade of the rake face and flank is also easily fused chip, the chip has been fused to the impact of follow-up processing will be forced off cause chipping, cracking to produce cutting instability. Currently AHX640W blade material chosen MC5020, the relative blade previously used materials, has improved significantly. Good wear resistance when machining nodular cast iron inhibited, prone to chipping (damaged) and the thermal cracking process can be long-term stable. MC5020 such materials and coatings can not only cut less than or equal 450MPa tensile strength of ordinary cast iron, can still be cutting up to 500-800MPa tensile strength of high strength cast iron.

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