High speed takes machine tool of silk thread cut for many times cut technology

  • Time:
  • Click:137
  • source:CLAREY CNC Machining
Sheet undertakes on online cut machine tool second mix for many times the comparative experiment of precision of the dimension when cut is machined, make clear silk thread cut takes in high speed cut technology is used for many times on the machine tool, can raise treatment precision apparently, bring remarkable economic benefits. Task of cut of ◆ first time is cut of high speed stability. ⑴ pulse parameter: Choose electric current of high peak value, longer the plan with broad arteries and veins has cut of big electric current definitely, in order to achieve higher cut rate. The compensation of contrail of center of ⑵ electrode silk is small: δ of D + of φ of F = 1/2 + △ + in S type, f is compensation (Mm) ; The discharge clearance when δ is first time cut (Mm) ; φ D is electrode silk diameter (Mm) ; △ is the mental allowance that leaves cut the 2nd times (Mm) ; S trims surplus for essence of life (Mm) . When thick plan of electric current of high peak value follows cut, unilateral discharge clearance is about 0.

02mm; Essence of life trims surplus very small, have 0 only commonly.

003mm. And mental allowance △ depends on the treatment surface surface roughness after first time cut and machine tool precision, be in about 0.

03 ～ 0.

Inside 04mm limits. Such, the compensation of first time cut should be in 0.

05 ～ 0.

Between 06mm, choose big the rate that can affect cut the 2nd times, choose small the vestige that is hard to eliminate first time cut again. ⑶ takes filar kind: Use high speed to walk along silk, speed walking along silk is 8 ～ 12m/s, achieve efficiency of the biggest treatment. ◆ the 2nd the task of cut is essence of life is repaired, assure to machine dimension precision. ⑴ pulse parameter: Choose medium compasses to allow, make the surface roughness Ra after cut is in the 2nd times 1.

4 ～ 1.

Between 7 μ M. ⑵ compensation F: Because the 2nd cut is essence of life,repair, discharge clearance is right now lesser, δ is less than 0.

01mm, and the treatment quality that the 3rd times cut place wants is very small, have a few micron only, both adds up it is about 0.

01mm. So, the 2nd times the compensation F of cut is 1/2d+0 about.

01mm can. ⑶ takes filar kind: To achieve the goal that essence of life repairs, use low speed to take filar kind normally, speed walking along silk is 1 ～ 3m/s, and to dogging feed speed bound is inside certain limits, in order to eliminate roundtrip cut stripe, obtain needs treatment dimension precision. ◆ the 3rd the task of cut is to cast grind Xiu Guang. ⑴ pulse parameter: With the smallest arteries and veins wide undertake Xiu Guang, and peak value electric current asks along with treatment surface quality and different. ⑵ compensation F: Theoretic the radius that is electrode silk is added on 0.

The discharge clearance of 003mm, actually essence of life builds a course is grinding of a kind of electric spark, treatment amount is very small, won't change the dimension size of workpiece. So, the radius that uses electrode only makes compensation also can achieve ideal result. ⑶ takes filar kind: Use low speed to walk along feed of filar speed limit in that way like the 2nd cut can. CNC Milling