Cutting tool cost and treatment productivity

4mm) ; Rotate speed: 4, 500r/min; Feed speed: 3m/min; Bit cost: Every 8 dollars (bit must every other 2 hours of dislocation, the treatment that just can complete core of a model) ; Bit totle drilling cost: 16 dollars; Machine cycle time: ; The workshop runs cost rate: 100 dollars / hour; Totle drilling cost of rough machining of every model core: 566 dollars. Rough machining example 2: Workpiece: Core of P20 steel model; Cutting tool: Integral hard alloy milling cutter of 4 blade big feed (diameter 12.

7mm) ; Rotate speed: 5, 000r/min; Feed speed: 8.

9m/min; Cutting tool cost: Every 100 dollars (cutting tool need not handlers interpose can finish modular core to machine) ; Machine cycle time: 2 hours; The workshop runs cost rate: 100 dollars / hour; Totle drilling cost of rough machining of every model core: 300 dollars. Conclusion: Clearly, in rough machining example 2 in, the cost of cutting tool should be gotten high much. But, example of these two treatment has 3 remarkable distinction: ① although rough machining example the cutting tool cost of 2 is rough machining example 6 times of 1, but its rough machining the totle drilling cost of core of every same pattern low much; ② is in rough machining example 1 in, as a result of bit must dislocation, handlers wants additional beautiful time to undertake artificial intervention, and the cost of this kind of manual operation and time did not include to be in treatment cycle time; ③ is in rough machining example 2 in, modular core uses the cutting tool treatment with lesser diameter, because machine the workpiece after to be close to final measure more, because of this leave out working procedure of 2 rough machining. (2) the example of finish machining finish machining of modular core 1: Workpiece: Core of model of large P20 steel; Cost of razor blade of mill of essence of life: 30 dollars; Cutting tool diameter: 19mm; Rotate speed: 12, 000r/min; Feed speed: 6m/min; A razor blade can machine core of a model; Finish machining the cycle time of core of a model: 6 hours; The workshop runs cost rate: 100 dollars / hour; Totle drilling cost of finish machining of every model core: 630 dollars. Finish machining example 2: Workpiece: Core of model of large P20 steel; Cost of razor blade of mill of essence of life: 30 dollars; Cutting tool diameter: 19mm; Rotate speed: 6, 000r/min; Feed speed: 3m/min; A razor blade can machine 2 models core; Finish machining the cycle time of core of a model: 12 hours; The workshop runs cost rate: 100 dollars / hour; Totle drilling cost of finish machining of every model core: 1, 215 dollars. Conclusion: Apparent, in finish machining example 1 in, the finished cost of every model core wants low much, because a lot of this mould workshops choose method of this kind of treatment. Shorter cycle time (6 hours) make its can machine more antrum or modular core. If workshop serial production, can machine everyday 3 - 4 models core. And in finish machining example 2 in, can machine 2 models core only at most everyday. Go up everyday to can arranging jockey person only day shift or two ethereal workshops, the likelihood uses nobody to the value defends treatment or undertake in the late evening only " light-off is machined " , such word, finish machining example the cost of 2 may be higher still, when because be in when the machine tool,parking plane position, workshop moving cost is basically 0. Although be in finish machining example 2 in, a razor blade can machine 2 models core, but this can save 15 dollars only, run cost with horary workshop (100 dollars) photograph comparing is negligible. Nevertheless, also can machine two kinds kind tie to rise: When days somebody value defends treatment, choose taller cutting parameter; In the late evening, change new bit, reduce cutting parameter, make the machine tool can rectify evening to undertake machining below the circumstance that need not intervene artificially thereby. Cutting tool chooses normally, use the cutting tool with bit type cutting tool or technical inferior level the precision requirement of finish machining of very inaccessible mould. If the dimension precision demand to end item is very high, so what machine the surface to its is bright and clean degree of demand should be very high also. Undertake benchwork nap by hand or rectify solely quite expend time, and can reduce dimension precision. Use more advanced cutting tool, can machine a very high surface quality and dimension precision at the same time, can omit thereby -- or cut down considerably at least -- the benchwork nap treatment that wins need of place of bright and clean surface. The dimension precision about mould finish machining and surface are bright and clean degree, a typical case is to use a kind of standard type to squelch bit is machined, the price of this kind of razor blade may be very cheap, but v of treatment precision photograph, the appearance that treatment gives is bright and clean degree bad also. In addition, add man-hour to be able to use inferior rotate speed and feed only normally with this kind of cutting tool. Although cutting tool itself is likely cheaper, but because treatment cycle time is longer, plus still need to undertake benchwork nap, because the final finished cost of this mould is met,increase considerably. More advanced whole hard alloy establishs milling cutter to have rougher core way, the strength of cutting tool is accordingly better. The heat in metal cutting of the generation when wider core path still can make machine is conducted faster (come loose namely hot sex is better) , can prolong cutting tool life thereby. Treatment support dogs the newest innovation gain that realizes cutting tool and its coating is crucial. The cooperation that workshop administrator and technical personnel should be built with the member machine backer of tool supplier and keeps close concerns, can use in order to ensure newest with the most advanced cutting tool product and coating. Pass merely read cutting tool advertisement or introduce a literary works, obtain may useful to specific treatment information very hard. Advertisement of most cutting tool has a few general news only, do not apply to your workshop certainly. If you see a few interested information, still must contact with tool supplier, study whether this kind of product suits his treatment. If this cutting tool appears it seems that useful, you still must undertake to its cutting experiments. Although cutting experiment can take up a few handling time, but often can save more time and money finally for you. When be contacted with tool manufacturer, you should ask for advice to support staff at their treatment, is not a salesperson. A lot of salespersons have a few cutting tool only normally basic common sense, and do not be familiar with the treatment knowledge that is aimed at specific treatment environment. The first question that you raise to the member that machine backer should be: "Are you efficient does cutting machine craft? " if answer what whether decide, you ask for advice to other expert with respect to need. When communicating with the applied engineer of tool supplier, you should provide a few basic treatment information to them, for example: Be mixed by the sort of treatment material interface of the total cutting deepness that the speed of the biggest feed of the top rotate speed of main shaft of the hardness, machine tool kind that you have, machine tool, machine tool, your need machines, main shaft (HSK, CAT40) , the type that uses cutting tool collet. If you hope to obtain the treatment proposal about some kind of specific work, the detailed treatment that you still should provide a few this work asks (wait like corner radius size) . Such conducing to seek advice from an opinion that what acquire high quality inside the shortest time. After receiving the pertinent information that tool supplier provides, whether should you still need to undertake to cutting tool cutting experiments certainly, you can understand the relevant provision that tool supplier experiments about cutting tool, undertake cutting experiments next. Cutting experiment is the treatment technology that understands place to choose cutting tool to whether can improve you, only way that improves productivity. Treatment technology is very a paragraph senior since period, about using efficient treatment (HPM) the discussion of craft had not stopped all the time, but still a few job shops are not willing to change cutting craft. Actually, once you understood the basic regulation of these new technology, with respect to meeting discovery, they actually not complex. Now, almost companies of all process designing software already these efficient treatment craft is embedded its machine software in the bag. Pay close attention to those who machine software closely to upgrade update crucial, can ensure you can use the optimal treatment technology of newest version so. Through using efficient treatment technology, although be on the vintage machine tool with main shaft slower rotate speed, also can improve treatment productivity. The fact proves, the big feed cutting tool of a few new designs is in rotate speed also can acquire very right cutting property on slower vintage machine tool. The design concept of these cutting tool is, will realize efficient treatment with inferior cutting speed and rate of higher every tine feed. This craft still uses lesser cutting deepness, but used however get the much bear that cut bits greatly (can amount to every tine 1mm) . Efficient treatment craft always is used cut lesserly deep (be cutting tool diameter normally 6% - 10% ) with step pitch (cut namely wide, be cutting tool diameter normally 10% - 40% ) . Means of this kind of treatment sounds seem to be inferior to using cut greatly deep fast in that way, but actually, in most treatment the condition falls, its machine efficiency to want to be gotten high much. Cut dilettantely through using deep, its are close to very much after workpiece passes rough machining final figure (net figure) , make follow-up semifinishing machining and finish machining can be finished quickly thereby. According to different workpiece geometry figure, some semifinishing machining can cancel completely even. Accordingly, the groovy craft productivity that craft of HPM rough machining compares a tradition normally is taller. Brief summary is in long-term with the user people after discussing issue of cutting tool cost, a few enterprises still insist to buy the cheapest cutting tool, and another some of enterprise has discovered, the sexual price that must inspect cutting tool in the round is compared, is not to see the value only, should consider investment of pair of which kinds of cutting tool to be able to obtain first-rate integrated benefit. The product that carries manufacturer of tool of many pairs of homes undertakes cutting experiments contrasting, you often can discover, the cutting tool of price lowest is not always is optimal choice. If you are mere,come according to the price cutting tool of choose and buy, can pay more high price probably finally. You still can miss all profit that use more advanced cutting tool to be able to be obtained. The test of a few cutting that more valuable to the price efficient cutting tool has makes clear, cutting tool life and / or of productivity rise can be as high as 20 times. Choose cutting tool and corresponding technique correctly, can shorten substantially treatment cycle time, can realize bigger productivity with the employee of same amount and machine tool thereby. CNC Milling