High speed is efficient treatment mould establishs milling cutter with blade of machine clip circular arc
- source:NODIE CNC Machining
Company of industry of ト of ツ of ュ of ジ of ィ of ダ of Japan of Css" Type=text/css Rel=stylesheet> produces a kind of high speed efficient milling mould places circular arc blade to establish milling cutter with HRM machine, brief introduction is as follows. The advantage that 1 machine places circular arc blade to establish milling cutter and ball head stand milling cutter photograph to compare, circular arc blade establishs the geometrical appearance of milling cutter to have an advantage on treatment surface surface roughness. The situation with same milling cutter stands to fall in height of point of a knife and ball head, can increase as a result of periodic feed severalfold, because this can shorten,machine length, save handling time considerably. In addition, if bottom R is identical, below the premise that does not produce interference in cutting tool, the circular arc knife that can use a diameter to be more than ball head to establish milling cutter establishs milling cutter, in cutting tool tigidity the respect is more advantageous. In contour line treatment, the treatment deepness that ball head stands milling cutter is bigger, the osculatory length of cutting blade is longer, bring about cutting to fight force to increase, produce high frequency vibration easily; And blade of machine clip circular arc establishs milling cutter to have taper, cutting blade contacts length weak point, reason cutting fights force lesser. In addition, ball head stands milling cutter to be in small when cutting the cutting below deep condition, with with machine clip circular arc blade establishs milling cutter cutting same area photograph is compared, the cutting length that stands by the cutting blade near the center should grow severalfold; Cutting speed wears away near inferior horizontal blade reach damaged is bigger, make machine aggravation of exterior surface roughness. As a result of machine clip circular arc blade establishs milling cutter is with cutting speed tall outside round R part participates in cutting, because this can come true,stick the stable milling treatment with very few bits. 2 research develop a purpose to be in the treatment of the model that note model, Die Casting model, use small diameter to establish milling cutter mostly, it is difficult to comparative to the treatment of late pattern antrum especially. Develop small diameter but the goal that knife of circular arc of dislocation big feed establishs milling cutter, it is development the blade of integral type circular arc that gives excel to have and ball head stand milling cutter, can suit to arrive from thick mill the cutting tool with have function of exceedingly good cutting, high accuracy and tigidity mill of essence of life, good. Ask to the high accuracy bit of big feed can achieve on the jacket of hard alloy arbor in tall tigidity, high accuracy, with respect to the finish machining of the semifinishing machining that can finish big feed and small feed. If the characteristic that machine of 3 big feed places circular arc blade to establish milling cutter forms blade of machine clip circular arc to establish milling cutter with two little bit, because close solid bolt is small, the ply of bit and cutter hub is lesser also, the intensity of cutting tool is accordingly insufficient. And machine of new-style big feed places circular arc blade to establish milling cutter is to use a bit, use fixture of a kind of high accuracy, high reliability firm clamp is on hard alloy cutter hub. This cutting tool has the following characteristic: Express all sorts of 1 coating material diamond pyramid hardness of coating of TiNTiCNTiAlNDV of characteristic coating sort (HV)2200240029003500 oxidation begins temperature (℃ ) 8001000 above of 400700 ～ use 500300 ～ of 400 ～ the DV coating of new development, the characteristic rank of coating of long DV of cutting tool life and original coating is expressed 1. Compare with original coating product, function of wear-resisting, heat-resisting rises, went up a new chance to extricateoneself from an awkward position, it is especially when the cutting of big feed dry formula that produces a large number of heat in metal cutting, fight oxidation function admirable DV coating is very effective. The plan will use this coating the product that Yu Xinkai delivers henceforth. Use before horny cutting blade, cutting fights force small, cutting function is preeminent as a result of part of cutting blade R 45 ° direction is before horn, because this is on axial,also be before horn. In addition, outside there is awl on the circle, the cutting that can reduce late pattern antrum to machine fights force. The cutting of with B company big feed milling cutter when milling S50C rolled steel fights force photograph to compare, the cutting that HRM machine places circular arc blade to establish milling cutter fought force to reduce 35% . Bit precision achieves whole to because high accuracy bit is used on high accuracy cutter hub,establish milling cutter accuracy class, can use at thick mill to be machined to half essence mill, will thick in the past mill and intensive of treatment of departure of mill of essence of life arrive milling of a big feed uses blade of machine clip circular arc to establish milling cutter to go up. Bit dimension. Can come true to arrive from the hard steel that be not temper by dipping in water the milling of high speed big feed of hard steel of temper by dipping in water is machined before the treatment of milling of high speed big feed that horny cutting blade can realize antrum of late pattern of mould of hard steel of temper by dipping in water. In treatment, the cutting tool cutting that uses blade of cutting of the horn before losing fights muscularity, easy bring about high frequency vibration, because this current current situation is,use low speed, small cut deep milling treatment. Blade of circular arc of clip of machine of HRM big feed establishs milling cutter to use before horny cutting blade, improved cutting performance, use the combination of the C8015 DV coating with hear resistance and admirable tenacity and hard alloy arbor, can realize treatment of milling of high speed, big feed. In addition, optional choose hard alloy an organic whole (RVM) , head of module type knife (MRN) , arbor of complete hard alloy (MSN) wait for combination. Big feed machine places the assorted method of head of knife of circular arc blade and arbor. 1 watch shows example of treatment of 4 treatment example 2 times from hard steel efficient milling machines example: When sunken speech of dish of the model that note model is being controlled inside treatment car, cutting tool is dangerous extend a capacity bigger, treatment deepness amounts to 70mm, treatment condition is slashing, but compare with photograph of original cutting tool, handling time can reduce half above. Express 2 machining SD61(J1S SCM of brand of makings of profile of colophony of name of example workpiece material from hard steel milling is) 4000mm/min(1 of feed of · of speed of feed of 181m/min(3600r/min) of speed of cutting of · of rotate speed of condition of treatment of HRM-160-R30 JC8015 of material of · of model of razor blade of RNMM-160070S-S16C of model of hardness 28HRC use cutting tool.
1mm/r) cuts deep Ap0.
05mm(tilts 30 ° , machine deepness 70mm) result and other company cutting tool to compare, handling time decreases a lot of; Cutting tool is dangerous extend big when, cutting noise is little, do not produce high frequency vibration, machining center of horizontal of machine tool of cold working of wind of cooling means of Ae8mm of good cutting width machines cutting position the blade of 2 integral circular arc that place circular arc blade to establish milling cutter and other company with HRM machine establish example hard steel of temper by dipping in water of SKD61 of milling of big feed of milling cutter high speed (the contrast of life of the cutting tool when HRC49) mould. To make treatment condition same, cutting tool set of cervical and the following length is 80mm. The comparative result of cutting tool life makes clear, whole establishs milling cutter wear away to become direct ratio with treatment length; And HRM cutting tool from cutting length 100m hind enters stability to wear away condition, wear away to did not increase ever since, the biggest wear extent when cutting length amounts to 280m just 0.
11mm, still can continue cutting, function excel whole establishs milling cutter. Blade of circular arc of clip of machine of 5 big feed establishs milling cutter to use a method (condition of basic standard cutting decides really) use note: Hang in cutting tool extend the condition with larger amount to fall, when machine tool tigidity is insufficient and generation is high frequency and oscillatory, maintain every to turn feed and milling rate are fixed, choose to reduce above all cut deep quantity Ap. Stable cutting speed (from low to tall) the method consults please trade catalogue. The blade of circular arc of clip of big feed machine that already began a sale now establishs standards of milling cutter measurement to be Ø8 ～ Ø20mm(in all 5 norms) . The development of this cutting tool and application are contributed to reduced mould finished cost to make. Place of thick now mill establishs milling cutter to wear away more easily with type of small diameter whole, can no more repair when grinding, can discard as useless only; And the knife clip that HRM machine places circular arc blade to establish milling cutter can change, cutter hub can be used for a long time, need to change only bit, can saying is cutting tool of a kind of environmental protection. CNC Milling