CN113600879B - Machining method for manufacturing titanium alloy impeller through fuse wire additive manufacturing - Google Patents
Machining method for manufacturing titanium alloy impeller through fuse wire additive manufacturing Download PDFInfo
- Publication number
- CN113600879B CN113600879B CN202110929739.0A CN202110929739A CN113600879B CN 113600879 B CN113600879 B CN 113600879B CN 202110929739 A CN202110929739 A CN 202110929739A CN 113600879 B CN113600879 B CN 113600879B
- Authority
- CN
- China
- Prior art keywords
- impeller
- processing
- milling
- blank
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of impeller processing, and particularly discloses a processing method for manufacturing a titanium alloy impeller by fuse wire additive manufacturing, which comprises the following steps: s1, determining a 3D scanning cloud picture of a titanium alloy three-dimensional flow impeller, and modeling again according to the 3D scanning cloud picture to generate a three-dimensional entity of a blank impeller; s2, determining a processing reference according to the three-dimensional entity of the blank and establishing a three-dimensional coordinate system; s3, marking an end face processing line, a correction circle line for marking a processing circle and a cross center line on a marking wheel disc plane on the blank impeller real object according to the determined processing reference and the determined three-dimensional coordinate system; s4, processing solid parts of the blank impeller, wherein the processed parts comprise the large excircle of the impeller, the large end face of the rear disc, the inner hole and the excircles and end faces of the inlet solid part; s5, processing a positioning clamping groove on the large end face of the rear disc; and S6, milling the impeller. The processing method can solve the problems of low material utilization rate, large cutting amount and long processing period caused by the existing processing method.
Description
Technical Field
The invention belongs to the technical field of impeller machining, and particularly relates to a machining method for manufacturing a titanium alloy impeller through fuse wire additive manufacturing.
Background
The three-dimensional flow titanium alloy impeller is used as a core component of an MVR vapor compressor product, and plays a vital role in the overall operation quality of a unit. The traditional impeller is manufactured by adopting a forging stock (cylindrical cake) form to carry out integral processing, and the material utilization rate is lower and is less than 15%. The manufacturing cost is high, the process is complicated, the processing period is too long (at least 30 days are needed), and the bottleneck of impeller manufacturing is formed. Therefore, it is highly desirable to design a novel impeller processing method to solve the above problems.
Disclosure of Invention
The invention aims to provide a processing method for manufacturing a titanium alloy impeller by fuse wire additive manufacturing, which aims to solve the problems of low material utilization rate and long processing period caused by the existing processing method.
In order to achieve the purpose, the technical scheme of the invention is as follows: a processing method for manufacturing a titanium alloy impeller by fuse wire additive manufacturing comprises the following steps:
s1, determining a 3D scanning cloud picture of a titanium alloy three-dimensional flow impeller, and modeling again according to the 3D scanning cloud picture to generate a three-dimensional entity of a blank impeller;
s2, determining a processing reference according to the three-dimensional entity of the blank and establishing a three-dimensional coordinate system;
s3, marking an end face machining line, a correction circle line of a machining circle and a cross center line on a wheel disc marking plane of the blank impeller according to the determined machining reference and the determined three-dimensional coordinate system;
s4, processing the solid part of the blank impeller; the processing part comprises a large excircle of the impeller, a large end face of the rear disc, an inner hole and each excircle and end face of the inlet solid part;
s5, processing a positioning clamping groove on the large end face of the rear disc;
and S6, milling the impeller.
Further, in step S6, the milling process includes the steps of:
s61, milling the profile line surface of the blade;
s62, roughly milling the pressure surface, the non-pressure surface and the runner bottom plate surface of the blade;
s63, performing finish milling on the fillet at the bottom of the blade;
s64, performing finish milling on the bottom plate surface of the flow channel;
and S65, performing finish milling on the pressure surface and the non-pressure surface of the blade.
Further, in step S1, the three-dimensional entity of the blank impeller is subjected to machining surface allowance processing.
Further, in step S4, the solid portion of the blank impeller is machined by turning.
Further, in step S5, a cross center line is introduced to the processed large outer circle and the processed large end face of the back plate, and the processed large end face and the processed large outer circle of the back plate are used as references; and the positioning clamping groove is processed by a method of correcting the direction according to the cross center line.
Further, the milling process specifically comprises the following steps:
s61, milling the blade profile line surface in a three-axis milling mode: adopting a phi 25 end mill, and reserving a margin of 0.3mm for roughly milling the blade profile surface; a phi 10 ball-end milling cutter is used for roughly milling the residual area on the blade profile surface, and a 0.3mm allowance is required to be reserved; finish milling the whole blade profile by using a phi 10 ball-end milling cutter;
s62, roughly milling the pressure surface, the non-pressure surface and the runner bottom plate surface of the blade in a five-axis linkage mode: roughly milling the pressure surface, the non-pressure surface and the runner bottom plate surface of a phi 16 end mill blade;
s63, performing finish milling on the fillet at the bottom of the blade in a five-axis linkage mode: adopting a phi 16 ball-end milling cutter to finish mill round corners at the bottoms of the long and short blades;
s64, performing finish milling on the bottom plate surface of the flow channel in a five-axis linkage mode: finish milling the surface of the runner bottom plate by using a phi 16 ball-end milling cutter;
s65, performing finish milling on the pressure surface and the non-pressure surface of the blade in a five-axis linkage mode: and (3) finely milling the pressure surface and the non-pressure surface of the blade by adopting a taper ball end mill.
Further, the machining allowance treatment requires that the single-edge allowance of each machining surface is larger than or equal to 3mm.
Furthermore, the blades are alternately arranged at intervals by adopting long blades and short blades.
The beneficial effects of this technical scheme lie in: (1) according to the technical scheme, the processing reference is found, the processing flow is optimized, the utilization rate of materials can be improved, the processing procedures are reduced, and the manufacturing period is shortened. (2) The positioning clamping groove can realize repeated clamping, the consistency of a positioning reference is realized, and powerful cutting can be met. (3) The long blades and the short blades are alternately arranged at intervals, so that interference between the adjacent blades in the additive manufacturing process can be avoided.
Drawings
FIG. 1 is a flow chart of a method of manufacturing a titanium alloy impeller by fuse additive manufacturing according to the present invention;
FIG. 2 is a perspective view of a three-dimensional solid of a blank;
FIG. 3 is a schematic structural diagram of a calibration circle line and a cross center line;
fig. 4 is a schematic structural view of the impeller processed in step S4;
fig. 5 is a schematic structural view of the positioning clamp groove processed in step S5.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a long blade 1, a short blade 2, a large excircle 3, a large end face 4 of a rear disc, an inner hole 5, an inlet solid part 6, an excircle 7, an end face 8, a positioning clamping groove 9, a cross center line 10 and a correction circular line 11.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The examples are substantially as shown in figures 1 to 5 of the accompanying drawings: a processing method for manufacturing a titanium alloy impeller by fuse wire additive manufacturing comprises the following steps:
s1, determining a 3D scanning cloud picture of the titanium alloy three-dimensional flow impeller, and performing modeling again according to the 3D scanning cloud picture to generate a three-dimensional entity of a blank impeller; processing surface allowance treatment is carried out on a three-dimensional entity of the blank impeller, and the single-side allowance of each processing surface is more than or equal to 3mm; the blades are alternately arranged at intervals by adopting the long blades 1 and the short blades 2, so that the interference between the adjacent blades in the additive manufacturing process can be avoided;
s2, determining a processing reference and establishing a three-dimensional coordinate system according to the three-dimensional entity of the blank, and specifically, adopting three-dimensional software to make the processing reference and the coordinate system on the three-dimensional entity of the blank;
s3, according to the determined processing reference and the three-dimensional coordinate system, according to the information such as the size, the angle and the like of the corresponding position, marking an end face processing line on the blank impeller object, marking a correction circle line 11 of a processing circle and marking a cross center line 10 on the wheel disc plane;
s4, turning the solid part of the blank impeller; the solid part comprises a large excircle 3 of the impeller, a large end face 4 of the rear disc, an inner hole 5, excircles 7 of an inlet solid part 6 and an end face 8.
S5, processing a positioning clamping groove 9 on the large end surface 4 of the rear disc: leading the cross center line 10 to the processed big outer circle 3 and the big end face 4 of the rear disc, and correcting according to the processed big outer circle 3 and the big end face 4 of the rear disc as a reference; correcting the azimuth according to the cross center line 10; thereby processing the positioning clamping groove 9. Thereby ensuring that the center line of the positioning clamping groove 9 passes through the center of the large excircle 3 and is superposed with the horizontal axis line of the cross center line 10.
S6, milling the impeller, wherein the milling process comprises the following steps:
s61, milling the profile line surface of the blade in a three-axis milling mode: adopting a phi 25 end mill, and reserving a margin of 0.3mm for roughly milling the blade profile surface; a phi 10 ball-end milling cutter is used for roughly milling the residual area on the blade profile surface, and a margin of 0.3mm is required to be reserved; finish milling the profile surface of the whole blade by using a phi 10 ball-end milling cutter;
s62, roughly milling a pressure surface, a non-pressure surface and a runner bottom plate surface of the blade in a five-axis linkage mode: roughly milling the pressure surface, the non-pressure surface and the runner bottom plate surface of the phi 16 end mill blade;
s63, performing finish milling on the fillet at the bottom of the blade in a five-axis linkage mode: a phi 16 ball-end milling cutter is adopted to finish mill the round corners at the bottoms of the long and short blades 2;
s64, performing finish milling on the bottom plate surface of the flow channel in a five-axis linkage mode: finish milling the surface of the runner bottom plate by using a phi 16 ball-end milling cutter;
s65, performing finish milling on the pressure surface and the non-pressure surface of the blade in a five-axis linkage mode: and (3) finely milling the pressure surface and the non-pressure surface of the blade by adopting a taper ball end mill.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing are embodiments of the present invention and are not intended to limit the scope of the invention to the particular forms set forth in the specification, which are set forth in the claims below, but rather are to be construed as the full breadth and scope of the claims, as defined by the appended claims, as defined in the appended claims, in order to provide a thorough understanding of the present invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. A processing method for manufacturing a titanium alloy impeller by fuse wire additive manufacturing is characterized by comprising the following steps: the method comprises the following steps:
s1, determining a 3D scanning cloud picture of the titanium alloy three-dimensional flow impeller, and performing modeling again according to the 3D scanning cloud picture to generate a three-dimensional entity of a blank impeller;
s2, determining a processing reference according to the three-dimensional entity of the blank and establishing a three-dimensional coordinate system;
s3, marking an end face machining line, a correction circle line of a machining circle and a cross center line on a wheel disc marking plane of the blank impeller according to the determined machining reference and the determined three-dimensional coordinate system;
s4, machining the solid part of the blank impeller; the processing part comprises a large excircle of the impeller, a large end face of the rear disc, an inner hole and excircles and end faces of the inlet solid part;
s5, processing a positioning clamping groove on the large end face of the rear disc; leading the cross center line to the processed large excircle and the processed large end face of the rear disc, and taking the processed large end face of the rear disc and the processed large excircle as a reference; processing a positioning clamping groove by a method of correcting the direction according to a cross center line;
s6, milling the impeller; the milling treatment specifically comprises the following steps:
s61, milling the profile line surface of the blade in a three-axis milling mode: adopting a phi 25 end mill, and reserving a margin of 0.3mm for roughly milling the blade profile surface; a phi 10 ball-end milling cutter is used for roughly milling the residual area on the blade profile surface, and a margin of 0.3mm is required to be reserved; finish milling the whole blade profile by using a phi 10 ball-end milling cutter;
s62, roughly milling the pressure surface, the non-pressure surface and the runner bottom plate surface of the blade in a five-axis linkage mode: roughly milling the pressure surface, the non-pressure surface and the runner bottom plate surface of the phi 16 end mill blade;
s63, performing finish milling on the fillet at the bottom of the blade in a five-axis linkage mode: adopting a phi 16 ball-end milling cutter to finish mill round corners at the bottoms of the long and short blades;
s64, carrying out finish milling on the bottom plate surface of the runner by adopting a five-axis linkage mode: finish milling the surface of the runner bottom plate by using a phi 16 ball-end milling cutter;
s65, performing finish milling on the pressure surface and the non-pressure surface of the blade in a five-axis linkage mode: and (3) finely milling the pressure surface and the non-pressure surface of the blade by adopting a taper ball end mill.
2. The method of claim 1 for machining a titanium alloy impeller by fuse wire additive manufacturing, wherein the method comprises the following steps: in step S1, the three-dimensional entity of the blank impeller is subjected to machining surface allowance processing.
3. The method of claim 1 for machining a titanium alloy impeller by fuse wire additive manufacturing, wherein the method comprises the following steps: in step S4, a solid portion of the blank impeller is machined by turning.
4. The method of claim 2, wherein the method comprises the steps of: the processing of the allowance of the processing surface requires that the single-side allowance of each processing surface is more than or equal to 3mm.
5. The method of claim 1 for machining a titanium alloy impeller by fuse wire additive manufacturing, wherein the method comprises the following steps: the blades are alternately arranged at intervals by adopting long blades and short blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110929739.0A CN113600879B (en) | 2021-08-13 | 2021-08-13 | Machining method for manufacturing titanium alloy impeller through fuse wire additive manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110929739.0A CN113600879B (en) | 2021-08-13 | 2021-08-13 | Machining method for manufacturing titanium alloy impeller through fuse wire additive manufacturing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113600879A CN113600879A (en) | 2021-11-05 |
| CN113600879B true CN113600879B (en) | 2022-10-14 |
Family
ID=78340625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110929739.0A Active CN113600879B (en) | 2021-08-13 | 2021-08-13 | Machining method for manufacturing titanium alloy impeller through fuse wire additive manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113600879B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502007002559D1 (en) * | 2006-04-12 | 2010-02-25 | Sulzer Markets & Technology Ag | cutting method |
| CN103056625B (en) * | 2012-12-29 | 2015-04-15 | 中国人民解放军总参谋部第六十研究所 | Integral impeller 5-axis machining method based on UG NX system platform |
| CN104209713A (en) * | 2014-08-28 | 2014-12-17 | 重庆Abb江津涡轮增压系统有限公司 | Manufacturing method of blind-hole compressor impeller |
| CN204621607U (en) * | 2015-04-08 | 2015-09-09 | 青岛职业技术学院 | A kind of special fixture of the numerical control efficient processing method for overall titanium alloy impeller |
| CN210115835U (en) * | 2019-05-31 | 2020-02-28 | 福州东凡机电科技有限公司 | Clamping device is used in processing of rubber impeller piece |
| CN111890326A (en) * | 2020-08-05 | 2020-11-06 | 中国第二重型机械集团德阳万航模锻有限责任公司 | Three-coordinate positioning machining reference marking method |
-
2021
- 2021-08-13 CN CN202110929739.0A patent/CN113600879B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113600879A (en) | 2021-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102722137A (en) | Five-axis plunge milling machining method for ruled surface impeller | |
| CN107239603B (en) | Rose cutter chatter stability lobes flap figure modeling method in five-axle number control machine tool processing | |
| CN110399681B (en) | Parametric modeling method for edge curve of arc-head end mill | |
| CN113927378B (en) | Numerical control grinding track calculation method for peripheral tooth chip dividing groove of rough milling cutter | |
| CN110703685B (en) | Skin mirror image milling cutter path self-adaptive adjusting method and device | |
| CN112255966B (en) | Adaptive generation method for machining track of narrow and long free-form surface part | |
| JP2019503877A (en) | Single blade bevel gear cutting tool | |
| CN113600879B (en) | Machining method for manufacturing titanium alloy impeller through fuse wire additive manufacturing | |
| CN107544433B (en) | Numerical-controlled machine tool machining process rose cutter and workpiece contact zone semi analytic modeling | |
| CN110497261B (en) | Method for accurately obtaining overall end mill chip pocket end face section shape based on pixel matrix method | |
| CN111283231A (en) | PCBN blade and blade | |
| CN109145456B (en) | Milling thermal analysis method for complex curved surface | |
| CN116562151A (en) | Method for calculating deviation of section shape of rotary envelope shaft of disc milling cutter with rotation axis error | |
| CN102799143A (en) | Method for calculating processing quality defect region of thin-wall curved surface part | |
| CN108153968B (en) | Modeling method of K-shaped groove of ternary blade | |
| CN105414621A (en) | Machining method for blade rabbet with asymmetric pressure faces | |
| CN106001338A (en) | High-temperature alloy no-allowance blade rolling method | |
| CN111230194B (en) | Edge line design method for end tooth linear edge of cylindrical flat-end milling cutter with chamfer | |
| CN111026035B (en) | Method for solving cyclone milling blade tool location point based on curvature change | |
| CN114578752A (en) | Corner control method for ultrasonic cutting straight-edge sharp knife | |
| CN109240213B (en) | Over-cut error estimation method for complex profile helical surface cyclone envelope milling process | |
| CN208825653U (en) | Double-pole Slot shaping angle cutting tool | |
| CN107662008A (en) | The processing method that titanium prevents plate | |
| CN211840317U (en) | Combined forming cutter | |
| CN206952291U (en) | A kind of new side set stepped knife |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |