But of model of dislocation razor blade choose

The means of knife reel solid that system of firm of choice knife reel asks according to cutting treatment the choice is right (express 1) , the structure of system of knife reel firm sees a picture 1, the performance characteristics of system of knife reel firm is divided into 1-5 class, among them 5 class are optimal choice. Express system of firm of 1 knife reel to choose recommend wedge of type of lever of means of the solid that express clip to hook type snail to sell get on vehicle of fine of the circle outside pressing type to press Kong Shi pressing plate to get on thick car of the circle outside type is being pressed on the profile modeling that press type 54252444 inside the circle inside round thick car fine vehicle.

Choose but the element that choice of model of dislocation razor blade can want to consider many sided when model of dislocation razor blade, choose bit appearance code according to processing the form of the spare parts; The data that processes according to cutting chooses advocate code of the horn after cutting blade; According to the treatment of the spare parts precision chooses code of bit dimension public errand; Break bits and code of the form that place firm according to machining a requirement to choose bit; Choose code of length of bit cutting blade according to chosen cutting dosage; In addition choose chamfer of knife segment bits even model; Pass length of blade of cutting of razor blade of academic and formulary computation. 1) chamfer of bits of choice knife segment if express 2 to show, ask treatment to cent is superfinishing, finish machining, semifinishing machining, rough machining, gravitational cutting according to cutting dosage 5 grade, express with code A, B, C, D, E respectively. Choose chamfer of appropriate knife segment bits according to the cutting function of workpiece material again model, see a table 3, chamfer of knife segment bits performance characteristics is divided into 1-5 class, among them 5 it is optimal choice. Express 2 cutting dosage to choose reference to express code to machine requirement feed F (Mm/r) superfinishing of cutting deepness Ap(mm)A 0.

05-0.

150.

25-2.

0B finish machining 0.

1-0.

30.

5-2.

0C semifinishing machining 0.

2-0.

52.

0-4.

0D rough machining 0.

4-1.

04.

0-10.

0E gravitational cutting > 1.

06.

0-20.

0 watches chamfer of bits of 3 knives segment is chosen recommend a watch to break material of bits chamfer workpiece to grow bits material stainless steel ABCDEABCDEBCDEABCDABCDPFPMFPMPMRPR543 of weak data of heat resistant material of short bits material- - 353---253- - 144- - 1455543- - 353- - 1552- - 134- - 134321- - 21- - 22- - 4554112243- - 54- - 2552-221- - 2221---33- - 232-----33-HFHMHR54----54- - 1451-54---354- - 2641-3---21- - 441-43- - 343-123121- - 344-23423153TCGRPMRPGR- - 14554---54---1442-1442---13354---54---2442-2442-44443---3---322-322---1143- - 43- - 13221322----21- - 21- - 23422342NUNNGNPUNPGN-1343-1343-1443-1443-----------3553-35534554455444314431---------355-355---------222-2221112-431- - 342- - 452- - 243-321- - 353-431-253-421-242RCMTRCMXRNMG13442-1343-124213432-2322-221-33323433233- - 222-222-2312232-111----Note: The watch interrupts bits chamfer model it is individual plant continent hard alloy factory but the code of the chamfer that break bits of dislocation razor blade 2) computation of cutting blade length passes razor blade of computation of K of cutting tool tool cutting edge angle and cutting deepness A L of length of effective cutting blade (graph 2) , the actual length of computative edge, choose code of right cutting blade length according to the actual length of edge next. Long L of effective cutting blade calculates the relation razor blade between graph 2 K, A and L formulary: Lmax=(0.

25-0.

5)L Lmax=0.

In 4d type: D - Mm L of diameter of circular razor blade - Mm 3 of length of bit cutting blade.

Cutting tool chooses by radius of circular arc of point of a knife when choosing rough machining of circular arc of bit point of a knife the biggest feed, or pass feed of cutting tool of experience formula computation; Feed of finish machining of computation of requirement of workpiece surface surface roughness is pressed when finish machining. 1) rough machining is expressed 4 choose reference of the biggest feed to express Mm0 of radius of circular arc of point of a knife.

40.

81.

21.

62.

Mm/r0 of 4 the biggest feed.

25-0.

350.

4-0.

70.

5-1.

00.

7-1.

31.

0-1.

Computation of experience of feed of 8 rough machining is formulary: F thick =0.

In 5R type: R - Mm F of radius of circular arc of point of a knife is thick - Mm 2 of rough machining feed) finish machining basis theory of exterior surface roughness is formulary and computative F of finish machining feed is formulary: In type: Rt - outline deepness µm F - feed Mm/r R ε - Mm 4 of radius of circular arc of point of a knife.

Standard of ISO of international of brand of material of choice razor blade expects material of hard alloy razor blade to cent is P, K, M3 kind, process steel, cast-iron, alloy steel and the data that process not easily respectively. Watch 5, watch 6 with the watch 7 it is what hard alloy factory produces individual plant continent but brand of material of dislocation razor blade. Will choose according to the material of turning workpiece and its hardness, chosen cutting dosage but the brand of material of dislocation razor blade. Express P of standard of 5 　 ISO kind wearability of HB of hardness of stuff of name of commonly used razor blade is basic Mm/r0 of feed of brand strength TN315TN325YB415YB425YB435YB235.

05-0.

1-0.

20.

05-0.

1-0.

30.

1-0.

4-0.

80.

1-0.

4-0.

80.

2-0.

5-1.

00.

1-0.

4-0.

6 Qie Xiao Su Du m/min Tan Su Gang 125640-530-430490-410-290480-345-250440-300-205380-230-165180-130-110150580-490-390450-380-260440-315-230400-275-190300-210-150165-120-100200510-430-340390-330-230385-216-200350-250-165260-185-130145-105-90 He Jin Gang 180445-370-300315-265-180380-265-195320-220-170200-140-100155-110-90275305-250-205215-160-125260-180-130215-150-115140-100-70105-75-60300280-235-190200-165-115240-165-120200-135-105125-90-6095-70-50350245-205-165175-145-100210-145-105170-120-90110-75-5585-60-45 Gao He Jin Gang 200400-330280-235-165350

1 feed Mm/r0.

1-0.

4-0.

80.

2-0.

5-1.

00.

2-0.

5-1.

M/min of 0 cutting speed quenchs steel quenchs steel fierce steel 55250 (HRC) cast-iron high strength of low strength of 130230315-270-210225-155-95175-145-100120-85-50105-75-4580-60-30 of pearlite of body of malleable iron Tie Guang is cast-iron 160250285-200-140210-145-100165-110-70120-90-55115-80-4580-50-30 of pearlite of ferrite of 180260475-290-185270-175-110225-150-90155-95-55135-95-6095-65-40 nodular cast iron is cold aluminium alloy of hard cast-iron 40017-11 not aluminium alloy of casting of 601001750-1280-800510-370-250 of heat treatment heat treatment not copper alloy of 7590460-285-175300-180-110 of heat treatment heat treatment plumbic alloy is brass, other data of 11090100610-430-295310-250-195225-160-115 of cathode copper of red copper bronze is hard 380-240190-120225-160 of vulcanite of plastic fiber material CNC Milling CNC Machining