CN105478851A - Tool special for deep hole machining and machining method for deep hole - Google Patents
Tool special for deep hole machining and machining method for deep hole Download PDFInfo
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- CN105478851A CN105478851A CN201410536460.6A CN201410536460A CN105478851A CN 105478851 A CN105478851 A CN 105478851A CN 201410536460 A CN201410536460 A CN 201410536460A CN 105478851 A CN105478851 A CN 105478851A
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Abstract
The invention discloses a tool special for deep hole machining. The tool comprises a tool bar, a tool bar head, a tool bar sleeve, a machining tool body and a pressing screw. The tool bar is made of an overall hard alloy YG8 material. The cross sections of the tool bar and the tool bar head are in an eccentric circular arc shape. The tool bar head is installed on the tool bar, and the tool bar head and the tool bar are connected through a 90-degree conical surface. The machining tool body is fixed to the tool bar head. The invention further discloses a machining method for a deep hole. The machining method is characterized in that a deep hole molded surface fine boring process is added; the effective extension length is more than or equal to 885 mm; a special deep hole boring tool is adopted as the machining tool body, and tool setting is conducted through the tool point; machining is conducted through a layering removing allowance method, considering the long overhanging of the tool body, the radial cutting depth of ever layer is 0.1-0.15 mm, and the allowances of a deep hole inner cavity are removed in a layering mode; according to the cutting parameter, the rotating speed is 95 r/mm, and the feeding speed is 0.12 mm/r. The tool special for deep hole machining has the advantages that the super-long hard alloy tool bar is applied, in the boring machining process that the slenderness ratio of the deep hole is greater than 10, the deep hole machining precison is improved, and the technical requirement for strict wall thickness differences of hollow shaft deep hole machining is met.
Description
Technical field
The present invention relates to field of machining, particularly a kind of deep hole machining dedicated tool and processing method thereof.
Background technology
In Machining Technology, particularly in the processing and manufacturing of long hollow shaft class part, deep hole machining is large technological difficulties all the time, and this type of technology receives much concern always.In deep hole machining, require sometimes to reach very high hole machined precision; For hollow shaft type parts processing, main processing difficulties problem is exactly the control to hollow shaft Wall-Thickness Difference numerical value.
Traditional deep hole machining moulding process is: boring, reaming, hinge conical hole.Deep hole processing is everlasting on deep hole drilling machine and is carried out, and each section of deep hole, profile sectional forming, be easy to cause origin reference location bigger error like this, and easily produces each section of inner hole centreline not coincidence error.Past, when reaming, adopts floating reamer when reaning allowance is uneven, and the floating cutter secundly of cutter cuts, and easily produce endoporus shift phenomenon, this also cannot repair when fine finishining, causes part rejection.
In the deep hole machining process of prior art, especially slenderness ratio more than 10 or the degree of depth more than the deep hole of 800mm, Wall-Thickness Difference can only control about 0.10, and in operation, internal control part Wall-Thickness Difference also only can reach 0.08.Meanwhile, the coaxiality error in hole is also difficult to ensure.If still continue to use traditional processing method when requiring that Wall-Thickness Difference is 0.05, after processing, the Wall-Thickness Difference qualification rate of part is extremely low, and in whole deep hole profile, the inner surface coaxiality error of stepped hole and conical surface transition is comparatively large, causes wall thickness difference overproof.After past people often adopt and look for hole bigger than normal theoretical centerline to make it consistent with aperture, process large internal surface of hole and ensure and the requirement of little internal surface of hole axiality; Then, internal hole reference and each surface of cylindrical is repaired, to ensure the requirement of hollow shaft Wall-Thickness Difference.This method, Repair gene process of getting up is very complicated, and randomness is comparatively large, and some local sizes and technical conditions are not easy to control very much.
To under coaxiality error or the exigent situation of Wall-Thickness Difference, in deep hole machining, technical requirement has become a technical barrier anxious to be resolved.As added man-hour carrying out deep hole boring, due to the restriction by hollow shaft structure and knife bar condition, effect is still undesirable.Original structural steel knife bar then can not meet the structural requirement of hollow shaft and the requirement of processing rigidity.
Market is expected a kind ofly can reach axiality, the deep hole processing method of more high-precision requirement of Wall-Thickness Difference and dedicated tool.
Summary of the invention
The object of this invention is to provide a kind of deep hole processing method that can obtain more high manufacturing accuracy and stable crudy, spy provides a kind of deep hole machining dedicated tool and processing method thereof.
The invention provides a kind of deep hole machining dedicated tool, it is characterized in that: described deep hole machining dedicated tool, comprises knife bar 1, knife bar head 2, knife bar cover 3, process tool 4, housing screw 5;
Wherein: wherein knife bar 1 is whole hard alloy YG8 material, interfere for knife bar and finished surface when avoiding deep hole machining produce, ensure that knife bar has enough intensity and good anufacturability, the cross section of knife bar 1 and knife bar head 2 is eccentric arc shape simultaneously; Knife bar head 2 is arranged on knife bar 1, and connected by 90 ° of conical surfaces, process tool 4 is fixed on knife bar head 2, by knife bar head 2 with ф 10H7 hole locate with the outer circular shaft of ф 10 on process tool 4 and be connected, and to be fixed by M8 housing screw 5.
Described knife bar 1 slenderness ratio is 15, the mode that is fixedly connected with between knife bar 1 and knife bar head 2 is vacuum brazing, described vacuum brazing is placed in by solder in the welding region between welded carbide alloy knife bar body and knife bar head, inject silver-colored brazing flux, together put in vacuum drying oven, being heated to 595 ~ 605 DEG C makes solder fusing cool with stove, completes welding.
Postwelding performance: stretch 30 ~ 40Kg/cm2.
Feature: non-fusible parent metal, is that its chemical composition, tissue and mechanical performance remain unchanged, and keeps the fastness of faying face; Select the load-carrying ability that withstands shocks strong, there is better wetability and fill up the solder of gap ability.
Under the prerequisite meeting deep hole machining requirement, in order to save material, facilitate processing and implementation, the cross section of cutter bar body and knife bar head is eccentric arc shape.
Described knife bar 1, knife bar draw ratio is 18, and the mode that is fixedly connected with between knife bar 1 and knife bar head 2 two parts is bonding;
Described technique for sticking is: first to gluing of surfaces polishing, then does to clean and drying and processing to it; Select thermosetting phenolic rubber adhesive, after the gluing of adhesive bond face, place about 15 minutes, then the preheating of baking box constant temperature is put into about 50 minutes, immediately both are bonded together after taking-up, apply 3Kg/cm2 pressure at room temperature to keep by adhesive cures, thus knife bar 1 and knife bar head 2 to be bonded together for about 10 minutes simultaneously;
Adhesive property: under room temperature 20 degrees celsius, knife bar 1 and knife bar head 2 bonding after non-homogeneous pull-off strength be 14Kg/cm2;
Under the prerequisite meeting processing request, in order to save material, facilitate processing and implementation, the cross section of cutter bar body and knife bar head is eccentric arc shape.
A kind of deep hole processing method, it is characterized in that: described deep hole processing method, in deep hole machining, utilize deep hole boring device, on the basis completing deep hole heavy boring and fraising, increase deep hole profile reboring operation, utilize carbide alloy knife bar, solve the Wall-Thickness Difference in deep hole machining and coaxial requirement;
The first step: knife bar 1 is loaded in knife bar cover 3, be then connected with lathe tool rest and clamp, and adjust knife bar 1 and knife bar head 2 hole site before clamping, ensure the effective extension elongation >=885mm of knife bar;
Second step: after knife bar 1 installs, installs process tool 4 and calculates the elongation of process tool 4, manual setting;
3rd step: install master plate and determine the position of master plate on lathe, the initial position of manual setting master plate contact pilotage; Tool setting on part front end face and endoporus, writes down tool setting point and master plate installation site;
4th step: with handwheel adjustment lathe main spindle's, makes cutter hub enter endoporus and does not interfere with part and be advisable;
5th step: knife bar 1 and process tool 4 are connected, and make the position of cutter head position and master plate, the actual axial dimension of the endoporus processed with part is consistent, controls deep hole axial dimension; Radial dimension controls by radial feed;
Test-cut met cannot estimate deep hole profile tool setting situation more deeply due to long hollow shaft deep hole profile, reserves position of tool tip in trial cut process, and reserved certain axial location size, is reserved as 5-10mm, to avoid touching wound, is as the criterion with bits under trial cut and measures;
6th step: long hollow shaft deep hole profile face surplus is removed, and process tool 4 selects special deep-hole boring cutter, uses point of a knife tool setting, and at deep hole profile and endoporus not interference position advance and retreat cutter; Remove the processing of surplus method with layering, consider that cutter overhangs longer, set every layer of radial cutting-in 0.1-0.15mm, layering completes inner cavity of deep hole surplus and removes; Cutting parameter: rotating speed 95r/mm; Feed speed 0.12mm/r;
7th step: fine finishining deep hole profile face, cutter is radially processed close to bottom inner cavity of deep hole profile, from top to bottom cuts along profile in deep hole, completes the processing in long hollow shaft deep hole profile face.
Advantage of the present invention:
Deep hole machining dedicated tool of the present invention and processing method thereof, adopt hard metal long cutting tool bar to carry out deep hole boring processing as dedicated tool, namely knife bar length and its can the diameter ratio of deep hole processing be 10 ~ 20.Application overlength carbide alloy knife bar, be greater than in the deep hole boring processing of 10 in slenderness ratio, change traditional deep hole processing technology, improve deep hole machining precision, meet the Wall-Thickness Difference technical requirement that hollow shaft deep hole machining is strict, obvious technique effect and economic benefit can be obtained.Can be generalized to other deep hole machining fields, larger economic benefit and social benefit can be created.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is design of part schematic diagram of the present invention;
Fig. 2 is cutter structure schematic diagram of the present invention;
Fig. 3 is that cutter of the present invention carries out deep hole machining schematic diagram;
Fig. 4 is lever structure schematic diagram;
Fig. 5 is knife bar header structure schematic diagram;
Fig. 6 is knife bar nested structure schematic diagram;
Fig. 7 is manufacturing procedure schematic diagram of the present invention.
Detailed description of the invention
Embodiment 1
Present embodiments provide a kind of deep hole machining dedicated tool, it is characterized in that: described deep hole machining dedicated tool, comprises knife bar 1, knife bar head 2, knife bar cover 3, process tool 4, housing screw 5;
Wherein: wherein knife bar 1 is whole hard alloy YG8 material, interfere for knife bar and finished surface when avoiding deep hole machining produce, ensure that knife bar has enough intensity and good anufacturability, the cross section of knife bar 1 and knife bar head 2 is eccentric arc shape simultaneously; Knife bar head 2 is arranged on knife bar 1, and connected by 90 ° of conical surfaces, process tool 4 is fixed on knife bar head 2, by knife bar head 2 with ф 10H7 hole locate with the outer circular shaft of ф 10 on process tool 4 and be connected, and to be fixed by M8 housing screw 5.
Described knife bar 1 slenderness ratio is 15, the mode that is fixedly connected with between knife bar 1 and knife bar head 2 is vacuum brazing, described vacuum brazing is placed in by solder in the welding region between welded carbide alloy knife bar body and knife bar head, inject silver-colored brazing flux, together put in vacuum drying oven, being heated to 595 ~ 605 DEG C makes solder fusing cool with stove, completes welding.
Postwelding performance: stretch 30 ~ 40Kg/cm2.
Feature: non-fusible parent metal, is that its chemical composition, tissue and mechanical performance remain unchanged, and keeps the fastness of faying face; Select the load-carrying ability that withstands shocks strong, there is better wetability and fill up the solder of gap ability.
Under the prerequisite meeting deep hole machining requirement, in order to save material, facilitate processing and implementation, the cross section of cutter bar body and knife bar head is eccentric arc shape.
A kind of deep hole processing method, it is characterized in that: described deep hole processing method, in deep hole machining, utilize deep hole boring device, on the basis completing deep hole heavy boring and fraising, increase deep hole profile reboring operation, utilize carbide alloy knife bar, solve the Wall-Thickness Difference in deep hole machining and coaxial requirement;
The first step: knife bar 1 is loaded in knife bar cover 3, be then connected with lathe tool rest and clamp, and adjust knife bar 1 and knife bar head 2 hole site before clamping, ensure the effective extension elongation >=885mm of knife bar;
Second step: after knife bar 1 installs, installs process tool 4 and calculates the elongation of process tool 4, manual setting;
3rd step: install master plate and determine the position of master plate on lathe, the initial position of manual setting master plate contact pilotage; Tool setting on part front end face and endoporus, writes down tool setting point and master plate installation site;
4th step: with handwheel adjustment lathe main spindle's, makes cutter hub enter endoporus and does not interfere with part and be advisable;
5th step: knife bar 1 and process tool 4 are connected, and make the position of cutter head position and master plate, the actual axial dimension of the endoporus processed with part is consistent, controls deep hole axial dimension; Radial dimension controls by radial feed;
Test-cut met cannot estimate deep hole profile tool setting situation more deeply due to long hollow shaft deep hole profile, reserves position of tool tip in trial cut process, and reserved certain axial location size, is reserved as 5-10mm, to avoid touching wound, is as the criterion with bits under trial cut and measures;
6th step: long hollow shaft deep hole profile face surplus is removed, and process tool 4 selects special deep-hole boring cutter, uses point of a knife tool setting, and at deep hole profile and endoporus not interference position advance and retreat cutter; Remove the processing of surplus method with layering, consider that cutter overhangs longer, set every layer of radial cutting-in 0.1-0.15mm, layering completes inner cavity of deep hole surplus and removes; Cutting parameter: rotating speed 95r/mm; Feed speed 0.12mm/r;
7th step: fine finishining deep hole profile face, cutter is radially processed close to bottom inner cavity of deep hole profile, from top to bottom cuts along profile in deep hole, completes the processing in long hollow shaft deep hole profile face.
Embodiment 2
Present embodiments provide a kind of deep hole machining dedicated tool, it is characterized in that: described deep hole machining dedicated tool, comprises knife bar 1, knife bar head 2, knife bar cover 3, process tool 4, housing screw 5;
Wherein: wherein knife bar 1 is whole hard alloy YG8 material, interfere for knife bar and finished surface when avoiding deep hole machining produce, ensure that knife bar has enough intensity and good anufacturability, the cross section of knife bar 1 and knife bar head 2 is eccentric arc shape simultaneously; Knife bar head 2 is arranged on knife bar 1, and connected by 90 ° of conical surfaces, process tool 4 is fixed on knife bar head 2, by knife bar head 2 with ф 10H7 hole locate with the outer circular shaft of ф 10 on process tool 4 and be connected, and to be fixed by M8 housing screw 5.
Described knife bar 1, knife bar draw ratio is 18, and the mode that is fixedly connected with between knife bar 1 and knife bar head 2 two parts is bonding;
Described technique for sticking is: first to gluing of surfaces polishing, then does to clean and drying and processing to it; Select thermosetting phenolic rubber adhesive, after the gluing of adhesive bond face, place about 15 minutes, then the preheating of baking box constant temperature is put into about 50 minutes, immediately both are bonded together after taking-up, apply 3Kg/cm2 pressure at room temperature to keep by adhesive cures, thus knife bar 1 and knife bar head 2 to be bonded together for about 10 minutes simultaneously;
Adhesive property: under room temperature 20 degrees celsius, knife bar 1 and knife bar head 2 bonding after non-homogeneous pull-off strength be 14Kg/cm2;
Under the prerequisite meeting processing request, in order to save material, facilitate processing and implementation, the cross section of cutter bar body and knife bar head is eccentric arc shape.
A kind of deep hole processing method, it is characterized in that: described deep hole processing method, in deep hole machining, utilize deep hole boring device, on the basis completing deep hole heavy boring and fraising, increase deep hole profile reboring operation, utilize carbide alloy knife bar, solve the Wall-Thickness Difference in deep hole machining and coaxial requirement;
The first step: knife bar 1 is loaded in knife bar cover 3, be then connected with lathe tool rest and clamp, and adjust knife bar 1 and knife bar head 2 hole site before clamping, ensure the effective extension elongation >=885mm of knife bar;
Second step: after knife bar 1 installs, installs process tool 4 and calculates the elongation of process tool 4, manual setting;
3rd step: install master plate and determine the position of master plate on lathe, the initial position of manual setting master plate contact pilotage; Tool setting on part front end face and endoporus, writes down tool setting point and master plate installation site;
4th step: with handwheel adjustment lathe main spindle's, makes cutter hub enter endoporus and does not interfere with part and be advisable;
5th step: knife bar 1 and process tool 4 are connected, and make the position of cutter head position and master plate, the actual axial dimension of the endoporus processed with part is consistent, controls deep hole axial dimension; Radial dimension controls by radial feed;
Test-cut met cannot estimate deep hole profile tool setting situation more deeply due to long hollow shaft deep hole profile, reserves position of tool tip in trial cut process, and reserved certain axial location size, is reserved as 5-10mm, to avoid touching wound, is as the criterion with bits under trial cut and measures;
6th step: long hollow shaft deep hole profile face surplus is removed, and process tool 4 selects special deep-hole boring cutter, uses point of a knife tool setting, and at deep hole profile and endoporus not interference position advance and retreat cutter; Remove the processing of surplus method with layering, consider that cutter overhangs longer, set every layer of radial cutting-in 0.1-0.15mm, layering completes inner cavity of deep hole surplus and removes; Cutting parameter: rotating speed 95r/mm; Feed speed 0.12mm/r;
7th step: fine finishining deep hole profile face, cutter is radially processed close to bottom inner cavity of deep hole profile, from top to bottom cuts along profile in deep hole, completes the processing in long hollow shaft deep hole profile face.
Claims (4)
1. a deep hole machining dedicated tool, is characterized in that: described deep hole machining dedicated tool, comprises knife bar (1), knife bar head (2), knife bar cover (3), process tool (4), housing screw (5);
Wherein: wherein knife bar (1) is whole hard alloy YG8 material, and the cross section of knife bar (1) and knife bar head (2) is eccentric arc shape; Knife bar head (2) is arranged on knife bar (1), connected by 90 ° of conical surfaces, process tool (4) is fixed on knife bar head (2), by on knife bar head (2) with ф 10H7 hole locate with the outer circular shaft of ф 10 on process tool (4) and be connected, and to be fixed by M8 housing screw (5).
2. according to deep hole machining dedicated tool according to claim 1, it is characterized in that: described knife bar (1) slenderness ratio is 15, the mode that is fixedly connected with between knife bar (1) and knife bar head (2) is vacuum brazing, described vacuum brazing is placed in by solder in the welding region between welded carbide alloy knife bar body and knife bar head, inject silver-colored brazing flux, together put in vacuum drying oven, be heated to 595 ~ 605 DEG C and solder fusing is cooled with stove, complete welding.
3. according to deep hole machining dedicated tool according to claim 1, it is characterized in that: described knife bar (1), knife bar draw ratio is 18, and the mode that is fixedly connected with between knife bar (1) and knife bar head (2) two parts is bonding;
Described technique for sticking is: first to gluing of surfaces polishing, then does to clean and drying and processing to it; Select thermosetting phenolic rubber adhesive, after the gluing of adhesive bond face, place about 15 minutes, then the preheating of baking box constant temperature is put into about 50 minutes, immediately both are bonded together after taking-up, apply 3Kg/cm2 pressure at room temperature to keep by adhesive cures, thus knife bar (1) and knife bar head (2) to be bonded together for about 10 minutes simultaneously.
4. a deep hole processing method, is characterized in that: described deep hole processing method, in deep hole machining, utilizes deep hole boring device, on the basis completing deep hole heavy boring and fraising, increases deep hole profile reboring operation;
The first step: knife bar (1) is loaded in knife bar cover (3), then be connected with lathe tool rest and clamp, and before clamping, adjust knife bar (1) and knife bar head (2) hole site, ensure the effective extension elongation >=885mm of knife bar;
Second step: after knife bar (1) installs, installs process tool (4) and calculates the elongation of process tool (4), manual setting;
3rd step: install master plate and determine the position of master plate on lathe, the initial position of manual setting master plate contact pilotage; Tool setting on part front end face and endoporus, writes down tool setting point and master plate installation site;
4th step: with handwheel adjustment lathe main spindle's, makes cutter hub enter endoporus and does not interfere with part and be advisable;
5th step: knife bar (1) and process tool (4) are connected, and make the position of cutter head position and master plate, the actual axial dimension of the endoporus processed with part is consistent, controls deep hole axial dimension; Radial dimension controls by radial feed;
Test-cut met cannot estimate deep hole profile tool setting situation more deeply due to long hollow shaft deep hole profile, reserves position of tool tip in trial cut process, and reserved certain axial location size, is reserved as 5-10mm, to avoid touching wound, is as the criterion with bits under trial cut and measures;
6th step: long hollow shaft deep hole profile face surplus is removed, and process tool (4) selects special deep-hole boring cutter, uses point of a knife tool setting, and at deep hole profile and endoporus not interference position advance and retreat cutter; Remove the processing of surplus method with layering, consider that cutter overhangs longer, set every layer of radial cutting-in 0.1-0.15mm, layering completes inner cavity of deep hole surplus and removes; Cutting parameter: rotating speed 95r/mm; Feed speed 0.12mm/r;
7th step: fine finishining deep hole profile face, cutter is radially processed close to bottom inner cavity of deep hole profile, from top to bottom cuts along profile in deep hole, completes the processing in long hollow shaft deep hole profile face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410536460.6A CN105478851A (en) | 2014-10-13 | 2014-10-13 | Tool special for deep hole machining and machining method for deep hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410536460.6A CN105478851A (en) | 2014-10-13 | 2014-10-13 | Tool special for deep hole machining and machining method for deep hole |
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| Publication Number | Publication Date |
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| CN105478851A true CN105478851A (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410536460.6A Pending CN105478851A (en) | 2014-10-13 | 2014-10-13 | Tool special for deep hole machining and machining method for deep hole |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453271A (en) * | 2018-05-21 | 2018-08-28 | 成都爱乐达航空制造股份有限公司 | A kind of depth lumen pore process tool |
| CN109047793A (en) * | 2018-07-25 | 2018-12-21 | 中国航空工业集团公司西安飞行自动控制研究所 | The CNC lathe work of deep annular groove in a kind of aperture |
| CN109482950A (en) * | 2018-11-13 | 2019-03-19 | 北京星航机电装备有限公司 | A kind of inner wing class formation machining accuracy deep hole cutter and processing method |
| CN109590694A (en) * | 2019-01-25 | 2019-04-09 | 江苏迈信林航空科技股份有限公司 | The processing method of deep blind hole |
| CN111347090A (en) * | 2020-04-07 | 2020-06-30 | 四川源维机械科技有限公司 | Method for machining deep holes in a control surface assembly |
| CN112589140A (en) * | 2020-12-03 | 2021-04-02 | 四川航天长征装备制造有限公司 | Special multi-step deep hole profile boring cutter and boring method |
| CN114654174A (en) * | 2022-04-19 | 2022-06-24 | 中国航发动力股份有限公司 | Method for machining inner molded surface of hollow shaft part with large length-diameter ratio |
| CN114700808A (en) * | 2022-03-31 | 2022-07-05 | 常熟市大柱锚链附件有限公司 | Anchor chain swivel ring body machining process |
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| DE4201715A1 (en) * | 1992-01-23 | 1993-07-29 | Peter Baumgaertner | Precision boring tool with size adjustment - has boring bar held in sleeve which has bore eccentric to holder axis and permits size adjustment by rotation of bar in sleeve |
| DE19629610A1 (en) * | 1996-07-23 | 1998-01-29 | Juergen Zeiner | Fine adjuster for single point boring bar |
| CN2434086Y (en) * | 2000-08-30 | 2001-06-13 | 中国核动力研究设计院 | Strong damping deep hole boring head |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453271A (en) * | 2018-05-21 | 2018-08-28 | 成都爱乐达航空制造股份有限公司 | A kind of depth lumen pore process tool |
| CN109047793A (en) * | 2018-07-25 | 2018-12-21 | 中国航空工业集团公司西安飞行自动控制研究所 | The CNC lathe work of deep annular groove in a kind of aperture |
| CN109482950A (en) * | 2018-11-13 | 2019-03-19 | 北京星航机电装备有限公司 | A kind of inner wing class formation machining accuracy deep hole cutter and processing method |
| CN109590694A (en) * | 2019-01-25 | 2019-04-09 | 江苏迈信林航空科技股份有限公司 | The processing method of deep blind hole |
| CN111347090A (en) * | 2020-04-07 | 2020-06-30 | 四川源维机械科技有限公司 | Method for machining deep holes in a control surface assembly |
| CN111347090B (en) * | 2020-04-07 | 2021-08-06 | 四川源维机械科技有限公司 | Method for machining deep holes in a control surface assembly |
| CN112589140A (en) * | 2020-12-03 | 2021-04-02 | 四川航天长征装备制造有限公司 | Special multi-step deep hole profile boring cutter and boring method |
| CN114700808A (en) * | 2022-03-31 | 2022-07-05 | 常熟市大柱锚链附件有限公司 | Anchor chain swivel ring body machining process |
| CN114700808B (en) * | 2022-03-31 | 2023-10-27 | 常熟市大柱锚链附件有限公司 | Anchor chain swivel ring body processing technology |
| CN114654174A (en) * | 2022-04-19 | 2022-06-24 | 中国航发动力股份有限公司 | Method for machining inner molded surface of hollow shaft part with large length-diameter ratio |
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Application publication date: 20160413 |