CN105345402B - A kind of distortion-free processing method of casing part Milling Machining circular hole and lace - Google Patents
A kind of distortion-free processing method of casing part Milling Machining circular hole and lace Download PDFInfo
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- CN105345402B CN105345402B CN201510802551.4A CN201510802551A CN105345402B CN 105345402 B CN105345402 B CN 105345402B CN 201510802551 A CN201510802551 A CN 201510802551A CN 105345402 B CN105345402 B CN 105345402B
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- circular hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention discloses a kind of casing part Milling Machining circular hole and the distortion-free processing method of lace, the radius R, Circularhole diameter D in the distance of center circle casing part center of circle of circular hole；The casing part Milling Machining circular hole and the distortion-free process steps of lace are as follows：1. process circular hole：Circular hole, D1=D (2.5mm to 3mm) are processed using diameter D1 drill bit；After processing, Circularhole diameter now is D1, and the radius R variable quantities in the distance of center circle casing part center of circle of circular hole are 0.1mm 0.5mm；The distortion-free processing method of the casing part Milling Machining circular hole and lace, solve the problems, such as that part deformation influences processing in processing, ensure that the requirement of the size and technical conditions of part, effective technical support is provided for the processing of other similarity pieces.
Description
Technical field
The present invention relates to casing part processing circular hole and lace method, a kind of casing part Milling Machining circular hole is specifically provided
With the distortion-free processing method of lace.
Background technology
Lace and during hole on traditional processing thin-walled parts installation side, bottom outlet is bored using as far as possible big drill bit, Ran Houkuo, boring,
Fraising, after ensureing hole size, carry out radially layered milling lace.This method work in-process has at 2 points：When during drilling, zero
Part vibration is big, and aperture is easily oval, and there is deviation position；Second, producing resonance during milling lace, cause to deform, can not process.
People are highly desirable obtain a kind of excellent casing part Milling Machining circular hole of technique effect and lace it is distortion-free plus
Work method.
The content of the invention
It is an object of the invention to provide a kind of excellent casing part Milling Machining circular hole of technique effect and lace are distortion-free
Processing method, the Milling Machining deformation that part poor rigidity is brought effectively is controlled, ensure the crudy of part.
The position degree requirement of casing hole in piece part, the radius R in the distance of center circle casing part center of circle of circular hole, it is theoretical pitch half
Footpath R variation no more than position degree requirement,
The distortion-free processing method of the casing part Milling Machining circular hole and lace, it is the selection of drill bit first：Bore bottom outlet
When drill bit be not easy it is excessive, otherwise drill after part position deviation exceed hole surplus, processing can not be remedied, bit diameter is bigger, adds
Work deviation is bigger, and it is crucial to select appropriate boring head；Next to that the determination of the cutting line of milling lace：Using axial stratification, cutter
Shear blade is processed, and is reduced tool sharpening drag, is avoided resonating；It is finally the determination of milling lace and drilling priority processing sequence：Bore and expand
Lace is rough milled behind hole, is then finished to hole, then finish lace.By the specific implementation of scheme, part is effectively guaranteed
Crudy.
Casing part Milling Machining circular hole and the distortion-free processing method of lace, the half of the distance of center circle casing part center of circle of circular hole
Footpath R, Circularhole diameter D；The casing part Milling Machining circular hole and the distortion-free process steps of lace are as follows：
1. process circular hole：Circular hole, D1=D- (2.5mm to 3mm) are processed using diameter D1 drill bit；After processing, now
Circularhole diameter is D1, and the radius R variable quantities in the distance of center circle casing part center of circle of circular hole are 0.1mm-0.5mm；
2. it is processed further hole：A diameter of D1 circular hole in being processed 1. using diameter D2 milling cutter reaming, after processing, now
Circularhole diameter D2 be D1+1mm, the radius R variable quantities in the distance of center circle casing part center of circle of circular hole are 0.06mm-0.1mm；
3. using axial stratification roughing lace using slotting cutter, cutter shear blade is processed, and each uniform upper slitter of groove is unilateral to stay
0.3mm-0.5mm surpluses, after processing, part circumference bounce deflection is 0.02mm；The circumference bounce deflection, i.e.,：Part
Around central rotation, because machining deformation causes the circumferential variation of periphery very big, in 0.5mm or so when bad, part is influenceed
Position degree of quality, i.e. hole etc., avoid every groove from processing one by one and bring stress deformation, processing effect is preferable.
4. hole is processed again：2. the circular hole of middle diameter D2, after processing, circle now are processed using diameter D3 milling cutter reaming
Bore dia D3 is D2+1.2mm, and the radius R variable quantities in the distance of center circle casing part center of circle of circular hole are 0.02-0.05mm；
5. ream：Using the circular hole in reamer processing 4., Circularhole diameter is set after processing to be D, the distance of center circle casing zero of circular hole
The radius R variable quantities in the part center of circle meet to require；
6. finish-milling lace：3. middle lace is processed using slotting cutter, stays 0.3-0.5mm surpluses all to remove by unilateral.Due to
Allowance is small, and part is indeformable.
The distortion-free processing method of the casing part Milling Machining circular hole and lace is especially suitable for thin cylinder part, solution
The problem of part deformation in processing of having determined influences processing, ensure that the requirement of the size and technical conditions of part, is that other are similar
The processing of part provides effective technical support.
Brief description of the drawings
Below in conjunction with the accompanying drawings and embodiment the present invention is further detailed explanation：
Fig. 1 is part external form profile view；
Fig. 2 be in Fig. 1 A to sectional view；
Fig. 3 is enlarged diagram at B-B in Fig. 2；
Fig. 4 is radially layered feed conspectus；
Fig. 5 is sectional view at A-A in Fig. 4；
Fig. 6 is axial stratification feed conspectus；
Fig. 7 is sectional view at A-A in Fig. 6.
Embodiment
Embodiment 1
The position degree requirement of casing hole in piece part, it is theoretical pitch radius R requirement of the variation no more than position degree,
The distortion-free processing method of the casing part Milling Machining circular hole and lace, it is the selection of drill bit first：Bore bottom outlet
When drill bit be not easy it is excessive, otherwise drill after part position deviation exceed hole surplus, processing can not be remedied, bit diameter is bigger, adds
Work deviation is bigger, and it is crucial to select appropriate boring head；Next to that the determination of the cutting line of milling lace：Using axial stratification, cutter
Shear blade is processed, and is reduced tool sharpening drag, is avoided resonating；It is finally the determination of milling lace and drilling priority processing sequence：Bore and expand
Lace is rough milled behind hole, is then finished to hole, then finish lace.By the specific implementation of scheme, part is effectively guaranteed
Crudy.
The distortion-free processing method of the casing part Milling Machining circular hole and lace, the distance of center circle casing part center of circle of circular hole
Radius R, Circularhole diameter D；The casing part Milling Machining circular hole and the distortion-free process steps of lace are as follows：
1. process circular hole：Circular hole, D1=D- (2.5mm to 3mm) are processed using diameter D1 drill bit；After processing, now
Circularhole diameter is D1, and the radius R variable quantities in the distance of center circle casing part center of circle of circular hole are 0.1mm-0.5mm；
2. it is processed further hole：A diameter of D1 circular hole in being processed 1. using diameter D2 milling cutter reaming, after processing, now
Circularhole diameter D2 be D1+1mm, the radius R variable quantities in the distance of center circle casing part center of circle of circular hole are 0.06mm-0.1mm；
3. using axial stratification roughing lace using slotting cutter, cutter shear blade is processed, and each uniform upper slitter of groove is unilateral to stay
0.3mm-0.5mm surpluses, after processing, part circumference bounce deflection is 0.02mm；The circumference bounce deflection, i.e.,：Part
Around central rotation, because machining deformation causes the circumferential variation of periphery very big, in 0.5mm or so when bad, part is influenceed
Position degree of quality, i.e. hole etc., avoid every groove from processing one by one and bring stress deformation, processing effect is preferable.
4. hole is processed again：2. the circular hole of middle diameter D2, after processing, circle now are processed using diameter D3 milling cutter reaming
Bore dia D3 is D2+1.2mm, and the radius R variable quantities in the distance of center circle casing part center of circle of circular hole are 0.02-0.05mm；
5. ream：Using the circular hole in reamer processing 4., Circularhole diameter is set after processing to be D, the distance of center circle casing zero of circular hole
The radius R variable quantities in the part center of circle meet to require；
6. finish-milling lace：3. middle lace is processed using slotting cutter, stays 0.3-0.5mm surpluses all to remove by unilateral.Due to
Allowance is small, and part is indeformable.
Embodiment 2
The distortion-free processing method of the casing part Milling Machining circular hole and lace, it is the selection of drill bit first：Bore bottom outlet
When drill bit be not easy it is excessive, otherwise drill after part position deviation exceed hole surplus, processing can not be remedied, bit diameter is bigger, adds
Work deviation is bigger, and it is crucial to select appropriate boring head；Next to that the determination of the cutting line of milling lace：Using axial stratification, cutter
Shear blade is processed, and is reduced tool sharpening drag, is avoided resonating；It is finally the determination of milling lace and drilling priority processing sequence：Bore and expand
Lace is rough milled behind hole, is then finished to hole, then finish lace.By the specific implementation of scheme, part is effectively guaranteed
Crudy.
Test platform is processed as with low-pressure turbine casing weld assembly, casing is used mainly for the big end installation side of Milling Machining
Part Milling Machining circular hole and the distortion-free processing method of lace：
①：Hole φ 6.5H7 (+0.015/0), the radius R659 in the distance of center circle casing part center of circle of circular hole are processed, during drilling
From the drill bits of φ 4, R658.76-R658.81 is checked after processing；
②：The milling cutter reamings of φ 4 are to φ 5, the semidiameter correction in the distance of center circle casing part center of circle of circular hole, R658.93；
③：The slotting cutter roughing laces of φ 10, it is unilateral to stay 0.3 surplus.Using axial stratification, cutter shear blade is processed, and
For the uniform upper slitter of each groove, avoid every groove from processing one by one and bring stress deformation, processing effect is preferable, part circle jump deformation 0.02；
4. the milling cutter reamings of φ 5 are to φ 6.2, the semidiameter correction in the distance of center circle casing part center of circle of circular hole, R658.95；
5. boring cutter boring is to reaming after φ 6.45- φ 6.48, aperture is qualified, the distance of center circle Thin-Wall Outer Casing part center of circle of circular hole
Radius R658.98, ensure position degree φ 0.15 requirement；
6. finish-milling lace, using the slotting cutters of φ 10, time processing all removes 0.3 surplus.Because allowance is small, zero
Part is indeformable.
The unit of size in the present embodiment is millimeter.
Claims (1)
1. a kind of casing part Milling Machining circular hole and the distortion-free processing method of lace, it is characterised in that：The distance of center circle machine of circular hole
The radius R in the casket part center of circle, Circularhole diameter D；The distortion-free process steps of the casing part Milling Machining circular hole and lace
It is as follows：
1. process circular hole：Circular hole, D1=D- (2.5mm to 3mm) are processed using diameter D1 drill bit；After processing, circular hole now
A diameter of D1, the radius R variable quantities in the distance of center circle casing part center of circle of circular hole are 0.1mm-0.5mm；
2. it is processed further hole：Using the circular hole of a diameter of D1 in diameter D2 milling cutter reaming processing 1., after processing, circle now
Bore dia D2 is D1+1mm, and the radius R variable quantities in the distance of center circle casing part center of circle of circular hole are 0.06mm-0.1mm；
3. using axial stratification roughing lace using slotting cutter, cutter shear blade is processed, and each uniform upper slitter of groove is unilateral to stay 0.3-
0.5mm surpluses, after processing, part circumference bounce deflection is 0.02mm；
4. hole is processed again：2. the circular hole of middle diameter D2 is processed using diameter D3 milling cutter reaming, after processing, circular hole now is straight
Footpath D3 is D2+1.2mm, and the radius R variable quantities in the distance of center circle casing part center of circle of circular hole are 0.02-0.05mm；
5. ream：Using the circular hole in reamer processing 4., Circularhole diameter is D after making processing, and the distance of center circle casing part of circular hole is justified
The radius R variable quantities of the heart are less than 0.075mm；
6. finish-milling lace：3. middle lace is processed using slotting cutter, stays 0.3-0.5mm surpluses all to remove by unilateral.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510802551.4A CN105345402B (en) | 2015-11-19 | 2015-11-19 | A kind of distortion-free processing method of casing part Milling Machining circular hole and lace |
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| CN201510802551.4A CN105345402B (en) | 2015-11-19 | 2015-11-19 | A kind of distortion-free processing method of casing part Milling Machining circular hole and lace |
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| CN105345402A CN105345402A (en) | 2016-02-24 |
| CN105345402B true CN105345402B (en) | 2017-12-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814668A (en) * | 2021-10-22 | 2021-12-21 | 中国航发贵州黎阳航空动力有限公司 | Thin-wall case lace machining method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161338A (en) * | 2017-12-18 | 2018-06-15 | 中国航发贵州黎阳航空动力有限公司 | A kind of processing technology of special stepped hole |
| CN109604685A (en) * | 2018-11-30 | 2019-04-12 | 中国航发沈阳黎明航空发动机有限责任公司 | A lace processing method for thin-walled superalloy parts |
| CN117483851B (en) * | 2023-12-29 | 2024-04-30 | 成都和鸿科技股份有限公司 | Machining feed method for annular thin-wall part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1356892A1 (en) * | 2002-04-22 | 2003-10-29 | ROLLS-ROYCE plc | Method of manufacturing thin wall isogrid casings |
| CN103286525A (en) * | 2012-03-02 | 2013-09-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Numerical control machining method for large thin-walled split casing of die forging |
| CN103586513A (en) * | 2013-11-12 | 2014-02-19 | 中国南方航空工业(集团)有限公司 | Method for processing precision holes in mounting edges of airplane turbine casing |
| CN104476112A (en) * | 2014-10-28 | 2015-04-01 | 沈阳黎明航空发动机(集团)有限责任公司 | High-temperature alloy large-diameter thin-wall pyramidal integral casing machining method |
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2015
- 2015-11-19 CN CN201510802551.4A patent/CN105345402B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1356892A1 (en) * | 2002-04-22 | 2003-10-29 | ROLLS-ROYCE plc | Method of manufacturing thin wall isogrid casings |
| CN103286525A (en) * | 2012-03-02 | 2013-09-11 | 沈阳黎明航空发动机(集团)有限责任公司 | Numerical control machining method for large thin-walled split casing of die forging |
| CN103586513A (en) * | 2013-11-12 | 2014-02-19 | 中国南方航空工业(集团)有限公司 | Method for processing precision holes in mounting edges of airplane turbine casing |
| CN104476112A (en) * | 2014-10-28 | 2015-04-01 | 沈阳黎明航空发动机(集团)有限责任公司 | High-temperature alloy large-diameter thin-wall pyramidal integral casing machining method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814668A (en) * | 2021-10-22 | 2021-12-21 | 中国航发贵州黎阳航空动力有限公司 | Thin-wall case lace machining method |
| CN113814668B (en) * | 2021-10-22 | 2024-08-06 | 中国航发贵州黎阳航空动力有限公司 | Thin-wall case lace processing method |
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| CN105345402A (en) | 2016-02-24 |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |