The new-style boring staff that computer simulation designs -- damp boring lever

In cutting treatment process, if machining complex produces vibration, the regular athletic meeting in treatment is disturbed, the proper place relation between machine tool, workpiece, cutting tool is destroyed, can make machine exterior occurrence Zhen Wen, surface wave to spend, aggravation machines exterior quality, the durability that reduces cutting tool shortens even machine tool life. To solve cutting vibration problem, 3 water chestnut companies of Japanese roll out a kind of new product -- damp boring lever. The design of damp boring lever was changed original decrease brace up disappear brace up method, the boring rod that uses design of computer simulation method reduced boring head quality, used special structure. Damp boring lever has favorable damp effect, make oscillatory very fast attenuation is eliminated, can assure good treatment surface quality. Graph the reasonable texture that the rod of boring of Gao Gang sex that lever uses the boring of structural characteristic damp that 11 damp hit pole to analyse a design to go out by computer simulation adds light-duty knife head, because prevented bending, added damp effect, achieved the goal of check system vibration. Lever of this damp boring has characteristic of the following structure: Big hollowness head, integral weight is light, be helpful for checking oscillatory; There is the chamfer that hold bit on two direction, platoon bit is good; The diameter of the smallest treatment that boring shank diameter sets than ISO standard is small still; Arbor flank has laser to engrave the scale that make, facilitating treatment locates; Can mix the bit of body of extrahigh voltage agglomeration with good wearability, bit has the F that is helpful for improving treatment quality, FS to break the bits chamfer, MV that is helpful for the processing that cut bits to break bits groove and comfortable break bits chamfer to wait at the SV of light cutting. If the graph is shown 1 times, the groove on damp boring lever makes boring lever has unique section figure, can balance cutting force well, make bending decreases 17% ; The head weight that damp hits pole is only 49.

7g, than fighting brace up weight of boring lever head is reduced 20.

4g, make the vibration when cutting is reduced, produce damp effect adequately, oscillatory stopping time is only 15.

8ms. The material of staff put oneself in another's position of damp boring lever has steel and hard alloy two kinds, the stretch model amount of put oneself in another's position of hard alloy staff is large, tigidity is good, can machine the opening that has older long way to compare. Lever of 2 damp boring is used but if the material of characteristic razor blade of dislocation razor blade expresses 1 to show, when the material that below different cutting condition treatment differs, can choose different material and the razor blade of the chamfer that break bits. Express what place of lever of 1 damp boring uses bit to recommend material and type of the chamfer that break bits by cutting material mild steel (≤ 180HB) carbon steel ～ alloy steel (stainless steel of 180 ～ 280HB) is cast-iron aluminium alloy quenchs steel SV breaks bits chamfer (light cutting) NX2525US7020NX2525UE6020US7020UE6020US7020 MV breaks bits flooey (medium cutting) NX2525US7020NX2525UE6020US7020UE6020US7020 F, , it is good to fight conglutinate function, suit the data with weaker hardness of high speed cutting; US7020 suits stainless steel of high speed cutting, iron of usable also Yu Zhu boring; HTi10 is comfortable at treatment aluminium alloy and cast-iron; Diamond MD220 is used at the treatment of accurate high speed of aluminium alloy; Quench aluminium close boring recommends) of use MB825(CBN material. Express 1 in commendatory UE6020 and VP15TF are two kinds of new material: UE6020 coating is the first selection coating of cutting steel products, the flowing deposit that it uses new development (technology of Even Deposition) , already wear-resisting is able to bear or endure again damaged, can prevent frit to add damaged and frit come off; VP15TF is to be on the base that exceeds TF15 of atomic hard alloy, the new knife sheet that the place of Miracle coating technology that uses Kobe of group of 3 water chestnut to make steel place develop makes is qualitative, its stop treatment of grinding of bits chamfer classics, cutting is stable, treatment surface quality is high. Choose chamfer of different knife segment bits to be able to break effectively cut bits with processing, its are cut be like a graph greatly with feed limits 2 are shown. Ab pursues all sorts of 2 knife segments are belonged to. Characteristic of structure of chamfer of bits of 3 knives segment suits applicable cutting range chart bore hole if place of graph 3a, 3b is shown,the SV of treatment and MV break bits chamfer structure. SV breaks bits chamfer to break bits chamfer composition with two paragraphs by stage of peninsula form protruding, processing weaker data or cut deep performance of the cutting when the workpiece that is less than 1mm is superior; In MV is used to break bits chamfer when cutting, its structure breaks bits chamfer composition with two paragraphs by spherical protruding stage, but cutting a variety of material, the cutting that all can gain satisfaction inside very wide cutting condition range and the effect that break bits (2a) seeing a picture. Lever of boring of bit appearance damp has a variety of type, can use a triangle respectively (T) , 80 ° lozenge (C) , 55 ° lozenge (D) , 35 ° lozenge (V) , hexagonal (W) bit. Watch 2 listed intensity of the cutting stability of all sorts of razor blade, edge, economy and the ability that get used to copying, can offer the reference when choosing. Generally speaking, the bit economy with much number of valid the crucial point is good; Bit vertex angle is bigger, intensity is higher, cutting temperature is more dispersive, besides can increase law Xiang Li, it is advantageous to cutting on the whole; Razor blade of small vertex angle applies to copying. Normally the basis is chosen bit figure by the appearance of treatment workpiece and dimension. Express place of lever of 2 damp boring to compare copying of intensity of blade of cutting of stability of economy of bit appearance knife handle with bit appearance and function FSTUP of triangle of vertex angle of number of effective cutting blade ◎ 60 ° of 3 ○ ○ FSTUP... model (hard alloy knife handle) 60 ° of 2 ◎ ○ FSCLC/P of 80 ° lozenge 2: ◎ the first recommend; The 2nd cutting requirement that recommends lever of 3 damp boring uses ○ the cutting requirement that when lever of steeliness damp boring processes different data, recommends sees a table 3, the cutting requirement that cutting of lever of boring of hard alloy damp recommends when different material sees a table 4. Express condition of cutting of lever of 3 steeliness boring to be machined by cutting material hardness 3L/d=4 ～ of configuration L/d ≤ 5 cutting speed (M/min) feed (Mm/r) is cut deep (Mm) cutting speed (M/min) feed (Mm/r) is cut deep (Mm) carbon steel, alloy steel (S45C, SCM440) finish machining of 180 ～ 220HB.

10(0.

05 ～ 0.

15) ～ 0.

2090(60 ～ 120)0.

10(0.

05 ～ 0.

15) ～ 0.

20 in cutting 110(60 ～ 160)0.

25(0.

15 ～ 0.

35) ～ 2.

0060(40 ～ 80)0.

20(0.

15 ～ 0.

25) ～ 1.

50 stainless steel (SUS340) 220)0 of ～ of 160(100 of finish machining of 180 ～ 220HB.

10(0.

05 ～ 0.

15) ～ 0.

20120(80 ～ 150)0.

10(0.

05 ～ 0.

15) ～ 0.

20 in 130)0 of cutting 90(50 ～ .

20(0.

15 ～ 0.

25) ～ 2.

0060(40 ～ 80)0.

20(0.

15 ～ 0.

25) ～ 1.

00 quench steel ～ 200)0 of 100(80 of finish machining of 35 ～ 65HRC.

10(0.

05 ～ 0.

15) ～ 0.

1560(40 ～ 80)0.

10(0.

05 ～ 0.

15) ～ 0.

10 cast-iron (FC250) ～ 160)0 of 130(90 of the following finish machining of tensile strength 350N/mm² .

15(0.

10 ～ 0.

20) ～ 0.

2090(60 ～ 120)0.

15(0.

10 ～ 0.

20) ～ 0.

20 in 120)0 of cutting 90(60 ～ .

20(0.

15 ～ 0.

25) ～ 2.

0060(40 ～ 80)0.

20(0.

15 ～ 0.

25) ～ 1.

400)0 of ～ of 300(200 of finish machining of 50 aluminium alloy.

10(0.

05 ～ 0.

15) ～ 0.

20250(200 ～ 300)0.

10(0.

05 ～ 0.

15) ～ 0.

20 in 250)0 of cutting 200(150 ～ .

10(0.

05 ～ 0.

15) ～ 2.

00200(150 ～ 250)0.

10(0.

05 ～ 0.

15) ～ 1.

00 watches condition of cutting of lever of boring of 4 hard alloy is machined by cutting material hardness 6L/d=7 ～ of configuration L/d ≤ 8 cutting speed (M/min) feed (Mm/r) is cut deep (Mm) cutting speed (M/min) feed (Mm/r) is cut deep (Mm) carbon steel, alloy steel (S45C, SCM440) 180 ～ 220HB.

10(0.

05 ～ 0.

15) ～ 0.

2090(60 ～ 120)0.

10(0.

05 ～ 0.

15) ～ 0.

20 in cutting 110(60 ～ 160)0.

25(0.

15 ～ 0.

35) ～ 2.

0060(40 ～ 80)0.

20(0.

15 ～ 0.

25) ～ 1.

50 stainless steel (SUS340) 220)0 of ～ of 160(100 of finish machining of 180 ～ 220HB.

10(0.

05 ～ 0.

15) ～ 0.

20120(80 ～ 150)0.

10(0.

05 ～ 0.

15) ～ 0.

20 in 130)0 of cutting 90(50 ～ .

20(0.

15 ～ 0.

25) ～ 2.

0060(40 ～ 80)0.

20(0.

15 ～ 0.

25) ～ 1.

00 quench steel ～ 200)0 of 100(80 of finish machining of 35 ～ 65HRC.

10(0.

05 ～ 0.

15) ～ 0.

1560(40 ～ 80)0.

10(0.

05 ～ 0.

15) ～ 0.

10 cast-iron (FC250) ～ 160)0 of 130(90 of the following finish machining of tensile strength 350N/mm² .

15(0.

10 ～ 0.

20) ～ 0.

2090(60 ～ 120)0.

15(0.

10 ～ 0.

20) ～ 0.

20 in 120)0 of cutting 90(60 ～ .

20(0.

15 ～ 0.

25) ～ 2.

0060(40 ～ 80)0.

20(0.

15 ～ 0.

25) ～ 1.

400)0 of ～ of 300(200 of finish machining of 50 aluminium alloy.

10(0.

05 ～ 0.

15) ～ 0.

20250(200 ～ 300)0.

10(0.

05 ～ 0.

15) ～ 0.

20 in 250)0 of cutting 200(150 ～ .

10(0.

05 ～ 0.

15) ～ 2.

00200(150 ～ 250)0.

10(0.

05 ～ 0.

15) ～ 1.

Lever of boring of damp of steeliness of example of treatment of lever of 004 damp boring and example of treatment of lever of boring of hard alloy damp see a table 5. Express 5 treatment example to use tool FSCLP1816R-09SFSTUP1412R-09E to use bit (material is planted) CPMH090304-MV(NX2525)TPGH090204L-FS(NX2525) boring lever is dangerous extend length 80mm(L/d=5)48mm(L/d=4) to use lathe of NC of lathe of machine tool NC to be machined speed of cutting of material cutting condition (M/min)80210 feed (Mm/r)0.

20.

11 cut deep (Mm)0.

50.

Water-solubility of 25 cooling lubricating fluid is oily fat dose effect compares agent water-solubility former steeliness is fought brace up of boring lever dangerous extend length to rise 1.

7 times, attainable good treatment appearance. Do not produce vibration, quality of finish machining surface is high CNC Milling