Numerical control lathe chooses knife course with lathe of cutting tool numerical control
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source:GERHOLD CNC Machining
The process picking a knife of cutting tool of numerical control lathe, if pursue,1 is shown. From to be being machined the analysis of part drawing appearance begins, to cutting tool of make choice of, need altogether through 10 basic measure, 10 1 medium icon come to to in an attempt to express. Process of the job that pick a knife begins from ” of design of hardware of “ of the 1st icon, via two way that arrowhead place shows, arrive at ” of cutting tool of make choice of of “ of the last icon jointly, pick knife job in order to finish. Among them, the first course is: Appearance of razor blade of system of clamp of arbor of influencing factor of part drawing appearance, machine tool, choice, razor blade, choice, basically consider the case of machine tool and cutting tool; The 2nd course is: The chamfer breaking bits of code of material of workpiece of workpiece influencing factor, choice, affirmatory razor blade, the choice machines conditional types of facial makeup in operas, this course basically considers the case of workpiece. Integrated the result of this two lines, ability decides chooses cutting tool. The content of each icon and choice way will talk below. (Icon of ” of influencing factor of machine tool of “ of influencing factor of 1) machine tool is shown 2 times like the graph. To assure to machine the feasibility of plan, economy, win optimal treatment program, following elements that must concern with the machine tool certainly before cutting tool chooses: Type of ① machine tool: Center of numerical control lathe, turning; ② tool accessories: The appearance of knife handle and diameter, left cut and handle of right cutting tool; Power of ③ main shaft; ④ workpiece clip maintains pattern. (If icon of ” of arbor of choice of “ of 2) choice arbor pursues 3 are shown. Among them, arbor type dimension sees a table 1. When choosing arbor, should choose dimension above all as far as possible big arbor, want to consider the following factors at the same time: ① clip maintains pattern; ② cut is sectional appearance, carry quantity of penetration of a cutting tool and feed on the back namely; Of ③ knife handle dangerous extend. (System of clamp of razor blade of system of clamp of 3) razor blade is commonly used system of lever type clamp, icon of ” of system of clamp of “ lever type is shown 4 times like the graph. System of clamp of type of lever of system of clamp of ① lever type is the most commonly used bit clamp means. Its characteristic is: Fixed position precision is tall, cut bits fluent, the operation is handy, but as general as product of other series cutting tool. Characteristic of system of ② bolt clamp: Apply to Xiaokong the aperture inside diameter and long dangerous extend treatment. Petiole of D of diameter of petiole of dimension of sectional appearance arbor grows petiole of arbor of treatment of the aperture inside arbor of treatment of the circle outside expressing kind of arbor of dimension of 1 arbor type the tool cutting edge angle that spend L1 (if icon of ” of appearance of razor blade of choice of “ of appearance of 4) choice razor blade pursues show 5 times. Main parameter chooses a method to be as follows: Size of sharp-angled of knife of horn of ① point of a knife decided the intensity of bit. Below the premise that allows in work structure appearance and systematic tigidity, should choose as far as possible part of large point of a knife. Normally this angle arrives in 35o between 90O. Graph 5 in R round razor blade, better stability is had when heavy cut, but the radial load with easy larger generation. The appearance of choice razor blade of appearance of ② razor blade is main the basis is machined the element choice such as the dislocation frequency of life of method of the exterior figure of workpiece, cutting, cutting tool and razor blade. triangular razor blade can be used at tool cutting edge angle to be 600 or of 900 outside round lathe tool, end panel lathe tool and inside aperture lathe tool. As a result of horn of point of a knife of this razor blade difference of small, intensity, durability low, reason appropriate uses lesser cutting dosage. The horn of point of a knife of square razor blade is 900, than of triangular razor blade 600 want big, accordingly its intensity is mixed medicinal powder hot property all rises somewhat. Versatility of this kind of razor blade is better, basically use at tool cutting edge angle to be 450, 600, 750 wait outside round lathe tool, end panel lathe tool and bore hole knife. the horn of point of a knife of pentagonal razor blade is 1080, its intensity, durability is tall, medicinal powder hot area is large. But the radial load when cutting is big, use below the case with better in treatment system tigidity appropriate only. Lozenge razor blade and circular razor blade basically are used at the treatment of figuration surface and circular arc surface, its appearance and dimension can combine treatment object to consult national level will decide. Graph appearance of 5 choices razor blade (if icon of ” of influencing factor of workpiece of “ of 5) workpiece influencing factor pursues show 6 times. When choosing cutting tool, must consider the factor that concerns with workpiece below: ① workpiece appearance: Stability; ② workpiece material is qualitative: The type cutting bits that forms hardness, plasticity, tenacity, possibly; Type of ③ semifinished product: Forging, cast; ④ machining complex tigidity: Machine tool clamping apparatus, workpiece, cutting tool; ⑤ surface quality; ⑥ machines precision; ⑦ cutting deepness; ⑧ feed; Durability of ⑨ cutting tool. (Icon of ” of code of material of workpiece of choice of “ of code of material of 6) choice workpiece is shown 7 times like the graph. Machine function according to different aircraft, treatment material is divided into group of 6 workpiece data, they part and a letter and correspondence of a kind of color, be machined in order to decide the code of data group symbol of workpiece, see a table 2. Express code of material of 2 choices workpiece to process steel of data group code: Be not stainless steel of tall alloy steel of alloy and alloy steel, ferrite, martensite P (blue) stainless steel and cast steel: M of austenite of austenite ferrite —— (yellow) cast-iron: Malleable iron, grey mouth is cast-iron, k of nodular cast iron (red) NF metal: Nonferrous metal and metalloid material N (green) difficult cutting material: Heat up titanium of solid sex material with what nickel or cobalt are matrix, titanium alloy and the S of tall alloy steel that difficult cutting machines (palm) hard data: Hard steel of temper by dipping in water, hard cast of temper by dipping in water and cold die cast, manganese steel H (white) (if icon of the chamfer breaking bits that 7) decides to the chamfer breaking bits of bit “ decides bit ” pursues show 8 times. Press the quantity of back penetration of a cutting tool of treatment and appropriate feed, choose manual to decide the chamfer breaking bits of bit code according to cutting tool. (If icon of ” of types of facial makeup in operas of condition of treatment of choice of “ of types of facial makeup in operas of condition of 8) choice treatment pursues 9 are shown, did 3 kinds of types of facial makeup in operas represent different treatment condition: ? Hui of ⒉ of deceive of Xiong deceive ⒑ scrupulously and respectfully １ ? expresses to machine a condition to depend on clip of the stability of the machine tool, cutting tool holds means and workpiece treatment face. Graph types of facial makeup in operas of 9 treatment condition (if icon of ” of cutting tool of make choice of of “ of cutting tool of 9) make choice of pursues show 10 times. Cent of job of make choice of is the following two respects: Basis of material of razor blade of ① make choice of is machined the chamfer breaking bits of the mark of data group symbol of workpiece, razor blade, treatment condition, manual of referenced cutting tool can single out bit material code name. Cutting tool of ② make choice of machines exterior outline according to workpiece, order goods arbor chooses in page number from arbor. The basis chooses good arbor, order goods bit chooses in page number from bit. CNC Milling