Metallic cutting tool machines tall hardness material to accept favour

When the angle that chooses cutting tool, need considers the impact of a variety of elements, pledge like workpiece material, cutting tool material, processability (thick, finish machining) etc, need fibrous root occupies particular case logical choice. The cutting tool point of view that explains normally, it is to point to make and measure used tagging when angle is working actually, as a result of the installation of cutting tool the position differs and the change of cutting movement way, the angle of real work and tagging angle differ somewhat, but differ normally very small. The material of production cutting tool must have very tall high temperature hardness and wearability, tenacity of necessary bending strength, concussion and chemistry are inert, good craft sex (cutting treatment, forging to wait for) with heat treatment, be out of shape not easily. Become normally when material hardness is tall, wearability is tall also when; bending strength is high, concussion tenacity is tall also. But material hardness is taller, its bending strength and concussion tenacity are lower. Because high-speed steel has very high bending strength and concussion tenacity, and good machinability, contemporary still be the cutting tool data with the most extensive application, it is hard alloy next. Get together nitrogen of brilliant cubic metre changes boron to apply to cutting hard steel of tall hardness temper by dipping in water and hard cast-iron wait for; to get together brilliant diamond applies to cutting not ferreous metal, reach alloy, plastic wait for steel of tool of steel of tool of; carbon element and alloy to use as only now with glass reinforced plastics the tool such as file, front tooth and tap. Hard alloy but dislocation razor blade now already titanium of carbonization of Fu of besmear of law of deposit of chemically gas phase, nitrogen changes titanium, alumina hard layer or compound hard layer. The physics that developing enrages deposit law to be able to be used at hard alloy cutting tool not only, also can use at high-speed steel cutting tool, wait like broach, hob, tap and milling cutter. Horniness coating diffuses as block up chemistry and heat up conductive barrier wall, make cutting tool is in when cutting wear away speed is decelerated, the life of coating razor blade and not the photograph comparing of coating raises 1~3 about times above. Because be below high temperature, high pressure, high speed, with the spare parts that works in caustic fluid medium, the difficult treatment data that its use is increasing, the automation level that cutting machines and the demand to machining precision are higher and higher. To get used to this kind of circumstance, the development direction of cutting tool will be the technology of coating of gas phase deposit that develop and uses; of new cutting tool material to develop cutting tool further, the coating of deposit on the matrix of tall tenacity high strenth taller hardness, solve the contradictory; between hardness of cutting tool material and intensity to develop further better but the production precision that the structural; of dislocation cutting tool raises cutting tool, reduce the difference of product quality, make the use of cutting tool realizes maximize. Press cutting movement way and corresponding edge figure, cutting tool can be divided again it is 3 kinds. General cutting tool, like lathe tool, planing tool, milling cutter (planing tool of the lathe tool that does not include figuration, figuration and figuration milling cutter) , boring cutter, broach, reamer, reamer and curium wait for; figuration cutting tool, the edge of this kind of cutting tool is had with be machined identical or workpiece section is adjacent same figure, mix like milling cutter of planing tool of figuration lathe tool, figuration, figuration, broach, conic reamer the; such as all sorts of thread machining cutting tool exhibits cutting tool is with the tooth flank that exhibits a law to machine gear or similar work, if the hob, knife that insert tine, shave ages,planing tool of knife, bevel gear is mixed bit body of bevel gear mill. The structure of all sorts of cutting tool is comprised by the part that hold clip and working section. The part holding clip of integral structure cutting tool and working section make the working part that sets tine structure cutting tool in the; on cutter hub (tooth or razor blade) set outfit go up in cutter hub. The part holding clip of cutting tool has take Kong He to take a power two kinds. Suit of the aperture inside support of the cutting tool that take aperture is on the main shaft of the machine tool or arbor, axial of have the aid of bolts or end panel key is delivered turn round pitching moment, be like cylindrical milling cutter of milling cutter, the face that cover type. The cutting tool that takes a power has rectangular shank, columnar handle and conic power normally 3 kinds. Lathe tool, planing tool bear for taper of * of conic handle of rectangular shank; commonly axial thrust, and force of attrition of have the aid of delivers torque; columnar handle to apply to lesser twist drill commonly, establish the cutting tool such as milling cutter, the attrition power that produces when clamp of the have the aid of when cutting is delivered turn round pitching moment. The petiole of the cutting tool of handle of a lot of belts is made with low-alloy steel, and working section uses high-speed steel to become two parts to solder. The working section of cutting tool arises namely and treat the share that cuts bits, include where a thing can be put to best use, make cut bits to break broken or bits of the structure of wind up, platoon or look store the structural element such as the passageway of fluid of the space that cuts bits, cutting. The working section of some cutting tool is cutting part, the working section that waits for some; cutting tool like lathe tool, planing tool, boring cutter and milling cutter includes cutting part and calibration share, be like broach, reamer, reamer, inside exterior broach and tap. The action of cutting part is to use edge excision to cut bits, the action of calibration part is Xiu Guang already the treatment surface of cutting and guide cutting tool. The structure of section of cutting tool job has integral type, solder type and style of mechanical clip firm 3 kinds. Integral structure is cutting blade; is made solder on cutter hub the structure is a solder of bit drill rod to the cutter hub of steel; machinery places firm structure to have two kinds again, one kind is originally knife reel on cutter hub, another kind is good drill rod solder knife head clip solid is on cutter hub. Hard alloy cutting tool is made commonly solder structure or cutting tool of porcelain of; of the rigid structure that place firm use machinery to place firm structure. CNC Milling