CN104588682A - Turning method of long thin wall composite shell body formed by metal and glass fiber reinforced plastics - Google Patents
Turning method of long thin wall composite shell body formed by metal and glass fiber reinforced plastics Download PDFInfo
- Publication number
- CN104588682A CN104588682A CN201410685015.6A CN201410685015A CN104588682A CN 104588682 A CN104588682 A CN 104588682A CN 201410685015 A CN201410685015 A CN 201410685015A CN 104588682 A CN104588682 A CN 104588682A
- Authority
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- China
- Prior art keywords
- turning
- housing
- fiberglass
- plug
- endoporus
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2215/00—Details of workpieces
- B23B2215/04—Aircraft components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2215/00—Details of workpieces
- B23B2215/10—Ammunition cartridge cases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2220/00—Details of turning, boring or drilling processes
- B23B2220/24—Finishing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2220/00—Details of turning, boring or drilling processes
- B23B2220/44—Roughing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/27—Composites
Abstract
The invention discloses a turning method of a long thin wall composite shell body formed by metal and glass fiber reinforced plastics. The method comprises the steps that (1) glass fiber reinforced plastics outer circle rough turning is carried out; (2) the two end faces of the shell body are subjected to rough turning; (3) glass fiber reinforced plastics outer circle fine turning is carried out; and (4) the two end faces of the shell body, an inner hole and an annular groove are subjected to fine turning. Rough-fine machining processes are used, technology allowance is distributed reasonably, deforming amount is controlled, metal shell inner hole accuracy is controlled and is used as the machining standard of a structure piece after recombination, an end cap and a soft claw are used for clamping, clamping deforming is lowered, through a low-temperature cold air cooling mode, a cutting environment is improved, a tool and cutting parameters during cutting machining are stipulated, product tool service life is prolonged, and machining efficiency is improved. The technology method is reasonable and reliable, product deforming is small, and the machining quality of the composite shell body can be effectively guaranteed.
Description
Technical field
The invention belongs to field of machining, more specifically, relate to the method for turning of the long thin-walled combined housing that a kind of metal and fiberglass are formed.
Background technology
In recent years, along with the continuous progress of science and technology, material technology obtains develop rapidly.Composite is as a kind of new material one of leading material becoming 21 century gradually.The features such as it is light that composite has quality, comparatively high specific strength, specific modulus, anticorrosive, high temperature resistant, ablation resistance are the ideal materials of the weapons such as aircraft, guided missile, aerospace craft." metal+composite " is a class formation part more common in certain series products at present, mainly adopts the technology manufactures such as winding, suit at present, is overlayed on the outer surface of metal shell by fiberglass.
Therefore, in Aerospace manufacturing industry, for " metal+composite " thin-wall construction cabin piece housing, after mainly adopting metal shell processing-metal and glass compound-compound, accurately machined flow process carries out product manufacturing.
" metal+composite " long thin-wall construction cabin piece housing has following characteristics:
(1) because of part material self character (plasticity as stainless steel material), machining tool and the reason such as machined surface extrudes, thermal deformation in mechanical processing process, this phase transformation in process of material cause part to process rear surface having and necessarily have residual stress, cause part to process rear existence and be necessarily out of shape;
(2) rigidity of design of part own is poor, there is clamping deformation in mechanical processing process;
(3) by the requirement of material property, glass is wound around in aft-loaded airfoil process can not adopt cooling fluid, and tool wear seriously causes dimension overproof;
(4) in process, cutting force is large, cutting temperature is high, tool wear is serious, and Product Precision is wayward;
Existing method for turning is as follows:
(1) Roughing and fine machining of cylindrical is first carried out, reprocessing endoporus;
(2) both ends of the surface of metal shell and the precision of endoporus are free control;
(3) size, directly clamps cylindrical during turning inner hole;
(4) compressed air is adopted to cool product;
Part process relates generally to inside and outside circle and end face processing, and Roughing and fine machining cylindrical, endoporus do not control, and affect follow-up combined housing precision, need to coordinate to borrow the size of amount to increase, turning difficulty strengthens, and directly causes follow-up wall unevenness, cannot meet design objective; Part rigidity is poor, directly clamps cylindrical turning, very easily clamping deformation occurs, and affects wall thickness and dimensional accuracy; Compressed air is normal temperature, can be limited to reduction Tool in Cutting hot merit, does not reach the functional requirement of cooling fluid.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides the method for turning of the long thin-walled combined housing that a kind of metal and fiberglass are formed, clamping deformation can be reduced, improve and cut environment, improve cutter life.
For achieving the above object, according to one aspect of the present invention, provide the method for turning of the long thin-walled combined housing that a kind of metal and fiberglass are formed, comprise the following steps:
1) rough turn fiberglass cylindrical, made allowance 0.5 ~ 1mm; Rough turn outer bowlder, first clear up the rear and front end of metal shell, with the Internal hole positioning of rear and front end, rear and front end adopts front plug and rear plug respectively, front end plug before chuck clamping, rear end holds out against rear plug with top, and retaining element, adds the type of cooling adopting man-hour air-cooler to blow a cold wind over and cool cutter simultaneously;
2) rough turn housing both ends of the surface, each made allowance 0.5 ~ 1mm in two ends; Rough turn endoporus, made allowance 0.2 ~ 0.5mm; During rough turn endoporus, adopt soft pawl clamping cylindrical, be clamped to the centre position of housing; Processing both ends of the surface and two ends endoporus; Add the type of cooling adopting man-hour air-cooler to blow a cold wind over to cool cutter;
3) finish turning fiberglass cylindrical; During fine turning outer circle, by front plug clamping on chuck, before centering, the circularity of plug cylindrical and shell inner hole contact surface is within 0.03, front plug end face and housing end face contact surface beat within 0.02; The rear plug of rear end face holds out against, and with top fixing; Before detecting with clearance gauge, the fit clearance of plug and front end endoporus, requires that the gap deviation of symmetric position is everywhere not more than 0.03; Add the type of cooling adopting man-hour air-cooler to blow a cold wind over to cool cutter;
4) finish turning housing both ends of the surface, endoporus and cannelure; During finish turning endoporus, adopt soft pawl clamping cylindrical, be clamped to the centre position of housing, centering housing cylindrical is beated within 0.05, processing both ends of the surface, two ends endoporus and cannelure; Add the type of cooling adopting man-hour air-cooler to blow a cold wind over to cool cutter.
Preferably, step 1) in the outer bowlder speed of mainshaft of rough turn fiberglass be 120 ~ 185r/min, feed speed is 0.27 ~ 0.81mm/r.
Preferably, step 3) in the outer bowlder speed of mainshaft of finish turning fiberglass be 120 ~ 185r/min, feed speed is 0.1 ~ 0.3mm/r.
Preferably, step 4) in rough turn shell inner hole time, the speed of mainshaft is 120 ~ 185r/min, and feed speed is 0.1 ~ 0.5mm/r.
Preferably, step 4) in finish turning housing both ends of the surface time, the speed of mainshaft is not more than 150r/min, and feed speed is 0.08 ~ 0.2mm/r.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial effect: the present invention adopts Roughing and fine machining operation, reasonable distribution process allowance, controlling distortion amount; Metal shell inner hole precision is controlled, as the machining benchmark of structural member after compound; Adopt plug and soft pawl clamping, reduce clamping deformation; By the type of cooling of low-temperature cold wind, improve and cut environment; Cutter in machining and cutting parameter are specified, improves product cutter life and working (machining) efficiency.Present invention process method rationally, reliably, deformation of products is little, can effectively ensure combined housing crudy.
Accompanying drawing explanation
Fig. 1 is the front view of the long thin-walled combined housing that metal and fiberglass are formed.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
With reference to Fig. 1, the method for turning of the long thin-walled combined housing that a kind of metal and fiberglass are formed, comprises the following steps:
1) rough turn fiberglass cylindrical, made allowance 0.5 ~ 1mm; Rough turn outer bowlder, first clear up the rear and front end of metal shell, with the Internal hole positioning of rear and front end, rear and front end adopts front plug and rear plug respectively, front end plug before chuck clamping, rear end holds out against rear plug with top, and retaining element, adds the type of cooling adopting man-hour air-cooler to blow low-temperature cold wind and cool cutter simultaneously; The outer bowlder speed of mainshaft of rough turn fiberglass is 120 ~ 185r/min, and feed speed is 0.27 ~ 0.81mm/r.
2) rough turn housing both ends of the surface, each made allowance 0.5 ~ 1mm in two ends; Rough turn endoporus, made allowance 0.2 ~ 0.5mm; During rough turn endoporus, adopt soft pawl clamping cylindrical, be clamped to middle part as far as possible, processing both ends of the surface and two ends endoporus; Add the type of cooling adopting man-hour air-cooler to blow low-temperature cold wind to cool cutter;
3) finish turning fiberglass cylindrical; During fine turning outer circle, by front plug clamping on chuck, before centering, the circularity of plug cylindrical and shell inner hole contact surface is within 0.03, front plug end face and housing end face contact surface beat within 0.02; The rear plug of rear end face holds out against, and with top fixing; Before detecting with clearance gauge, the fit clearance of plug and front end endoporus, requires that the gap deviation of symmetric position is everywhere not more than 0.03; Add the type of cooling adopting man-hour air-cooler to blow low-temperature cold wind to cool cutter; The outer bowlder speed of mainshaft of finish turning fiberglass is 120 ~ 185r/min, and feed speed is 0.1 ~ 0.3mm/r.
4) finish turning housing both ends of the surface, endoporus and cannelure; During finish turning endoporus, adopt soft pawl clamping cylindrical, be clamped to the centre position of housing, centering housing cylindrical is beated within 0.05, processing both ends of the surface, two ends endoporus and cannelure; Add the type of cooling adopting man-hour air-cooler to blow low-temperature cold wind to cool cutter.During rough turn shell inner hole, the speed of mainshaft is 120 ~ 185r/min, and feed speed is 0.1 ~ 0.5mm/r.During finish turning housing both ends of the surface, the speed of mainshaft is not more than 150r/min, and feed speed is 0.08 ~ 0.2mm/r.
Combined housing below in conjunction with a concrete size describes method of the present invention in detail, and the design length of this combined housing should be 570mm, and fiberglass excircle dimension is
200 ± 0.1mm, wall thickness is 3mm (metal)+3mm (fiberglass), comprises the following steps:
(1) metal shell turning:
1) adopt plug, two top clampings, fine turning outer circle, within controlling circularity 0.1;
2) take cylindrical as benchmark, adopt soft pawl clamping, car two ends endoporus and end face (endoporus made allowance one side 1.5mm, combined state made allowance is pressed at two ends), within controlling the both ends of the surface depth of parallelism 0.05, within two ends endoporus and end face squareness 0.05.
(2) turning after compound;
(2.1) metal shell both ends of the surface cleaned out, with two ends Internal hole positioning, adopt plug to coordinate with endoporus and end face, front end plug before chuck clamping, rear end holds out against rear plug with top, simultaneously retaining element;
Rough turn fiberglass cylindrical, made allowance 1mm;
(2.2) adopt soft pawl clamping cylindrical, be clamped to middle part as far as possible, processing both ends of the surface and two ends endoporus;
Rough turn housing both ends of the surface, each made allowance 1mm in two ends; Rough turn endoporus, made allowance 0.5mm;
(2.3) by front plug clamping on chuck, before centering, the circularity of plug cylindrical and shell inner hole contact surface is within 0.03, front plug end face and housing end face contact surface beat within 0.02; The rear plug of rear end face holds out against, and with top fixing; Before detecting with clearance gauge, the fit clearance of plug and front end endoporus, requires that the gap deviation of symmetric position is everywhere not more than 0.03;
Finish turning fiberglass cylindrical to design size, within controlling cylindrical cylindricity 0.1;
(2.4) adopt soft pawl clamping cylindrical, be clamped to middle part as far as possible, centering housing cylindrical is beated within 0.05;
Finish turning housing both ends of the surface, endoporus and cannelure, ensure design objective.
Metal in combined housing is stainless steel 2Cr13, and for stainless cap processing, propose and adopt YG8 hard alloy cutter turning stainless steel 2Cr13, the geometric parameter of cutter is in table 1;
Geometric parameter recommended by table 1 stainless steel 2Cr 13 cutting tool
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the method for turning of long thin-walled combined housing that formed of metal and fiberglass, is characterized in that: comprise the following steps:
1) rough turn fiberglass cylindrical, made allowance 0.5 ~ 1mm; Rough turn outer bowlder, first clear up the rear and front end of metal shell, with the Internal hole positioning of rear and front end, rear and front end adopts front plug and rear plug respectively, front end plug before chuck clamping, rear end holds out against rear plug with top, and retaining element, adds the type of cooling adopting man-hour air-cooler to blow a cold wind over and cool cutter simultaneously;
2) rough turn housing both ends of the surface, each made allowance 0.5 ~ 1mm in two ends; Rough turn endoporus, made allowance 0.2 ~ 0.5mm; During rough turn endoporus, adopt soft pawl clamping cylindrical, be clamped to the centre position of housing; Processing both ends of the surface and two ends endoporus; Add the type of cooling adopting man-hour air-cooler to blow a cold wind over to cool cutter;
3) finish turning fiberglass cylindrical; During fine turning outer circle, by front plug clamping on chuck, before centering, the circularity of plug cylindrical and shell inner hole contact surface is within 0.03, front plug end face and housing end face contact surface beat within 0.02; The rear plug of rear end face holds out against, and with top fixing; Before detecting with clearance gauge, the fit clearance of plug and front end endoporus, requires that the gap deviation of symmetric position is everywhere not more than 0.03; Add the type of cooling adopting man-hour air-cooler to blow a cold wind over to cool cutter;
4) finish turning housing both ends of the surface, endoporus and cannelure; During finish turning endoporus, adopt soft pawl clamping cylindrical, be clamped to the centre position of housing, centering housing cylindrical is beated within 0.05, processing both ends of the surface, two ends endoporus and cannelure; Add the type of cooling adopting man-hour air-cooler to blow a cold wind over to cool cutter.
2. the method for turning of long thin-walled combined housing that formed of a kind of metal according to claim 1 and fiberglass, is characterized in that: step 1) in the outer bowlder speed of mainshaft of rough turn fiberglass be 120 ~ 185r/min, feed speed is 0.27 ~ 0.81mm/r.
3. the method for turning of long thin-walled combined housing that formed of a kind of metal according to claim 1 and fiberglass, is characterized in that: step 3) in the outer bowlder speed of mainshaft of finish turning fiberglass be 120 ~ 185r/min, feed speed is 0.1 ~ 0.3mm/r.
4. the method for turning of long thin-walled combined housing that formed of a kind of metal according to claim 1 and fiberglass, is characterized in that: step 4) in rough turn shell inner hole time, the speed of mainshaft is 120 ~ 185r/min, and feed speed is 0.1 ~ 0.5mm/r.
5. the method for turning of long thin-walled combined housing that formed of a kind of metal according to claim 1 and fiberglass, is characterized in that: step 4) in finish turning housing both ends of the surface time, the speed of mainshaft is not more than 150r/min, and feed speed is 0.08 ~ 0.2mm/r.
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105149662A (en) * | 2015-08-28 | 2015-12-16 | 湖北三江航天红阳机电有限公司 | Machining method for glass fiber reinforced plastic material conical circle shell parts |
CN105414563A (en) * | 2015-12-03 | 2016-03-23 | 湖北三江航天红阳机电有限公司 | Machining method of cylindrical thin-wall rotary part with wavy axial section |
CN106270672A (en) * | 2016-08-30 | 2017-01-04 | 湖北三江航天红阳机电有限公司 | A kind of processing method of fiberglass part |
CN109177267A (en) * | 2018-08-31 | 2019-01-11 | 西安航天动力技术研究所 | A kind of forming method with the shell of adapter cooperation |
CN112658600A (en) * | 2020-11-30 | 2021-04-16 | 上海航天精密机械研究所 | Method for processing general titanium alloy cabin welded by metal plate |
CN113414553A (en) * | 2021-06-30 | 2021-09-21 | 哈尔滨电气动力装备有限公司 | Machining process of main pump impeller cover of shaft seal of nuclear power station |
CN114178558A (en) * | 2021-12-31 | 2022-03-15 | 湖北三江航天红阳机电有限公司 | Processing method of composite material revolving body |
CN115229446A (en) * | 2022-07-29 | 2022-10-25 | 湖南贝特新能源科技有限公司 | Method and auxiliary processing equipment for processing fixed scroll |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN106270672B (en) * | 2016-08-30 | 2018-10-12 | 湖北三江航天红阳机电有限公司 | A kind of processing method of glass steel part |
CN109177267A (en) * | 2018-08-31 | 2019-01-11 | 西安航天动力技术研究所 | A kind of forming method with the shell of adapter cooperation |
CN112658600A (en) * | 2020-11-30 | 2021-04-16 | 上海航天精密机械研究所 | Method for processing general titanium alloy cabin welded by metal plate |
CN112658600B (en) * | 2020-11-30 | 2023-02-17 | 上海航天精密机械研究所 | Method for processing general titanium alloy cabin welded by metal plate |
CN113414553A (en) * | 2021-06-30 | 2021-09-21 | 哈尔滨电气动力装备有限公司 | Machining process of main pump impeller cover of shaft seal of nuclear power station |
CN113414553B (en) * | 2021-06-30 | 2022-05-13 | 哈尔滨电气动力装备有限公司 | Machining process of main pump impeller cover of shaft seal of nuclear power station |
CN114178558A (en) * | 2021-12-31 | 2022-03-15 | 湖北三江航天红阳机电有限公司 | Processing method of composite material revolving body |
CN115229446A (en) * | 2022-07-29 | 2022-10-25 | 湖南贝特新能源科技有限公司 | Method and auxiliary processing equipment for processing fixed scroll |
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