CN104646739A - Aluminum alloy side milling process under assistance of ultrasonic longitudinal vibration - Google Patents
Aluminum alloy side milling process under assistance of ultrasonic longitudinal vibration Download PDFInfo
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- CN104646739A CN104646739A CN201510097320.8A CN201510097320A CN104646739A CN 104646739 A CN104646739 A CN 104646739A CN 201510097320 A CN201510097320 A CN 201510097320A CN 104646739 A CN104646739 A CN 104646739A
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- ultrasonic
- side milling
- cutter
- longitudinal vibration
- extensional vibration
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention relates to an aluminum alloy side milling process under assistance of ultrasonic longitudinal vibration. A process device consists of an ultrasonic wave generator, an ultrasonic longitudinal vibration cutter handle and an ordinary machine tool. The process comprises the following steps: (1) selecting a cutter for side milling, and installing the cutter onto the ultrasonic longitudinal vibration cutter handle; (2) starting the machine tool, installing the ultrasonic longitudinal vibration cutter handle onto the machine tool, and well fixing a workpiece; (3) starting the ultrasonic wave generator, wherein the ultrasonic longitudinal vibration frequency of the cutter is 20kHz to 40kHz, the ultrasonic longitudinal vibration amplitude value is 0 to 20 micrometers, setting a machining process parameter, and beginning the side milling; and (4) closing the ultrasonic wave generator and the machine tool after the side milling is ended, and taking down the ultrasonic longitudinal vibration cutter handle and the well machined workpiece. The aluminum alloy side milling process has beneficial effects that the process flow is easy to realize, the cutter sticking phenomenon is improved, and the milling quality of the workpiece surface such as the surface coarseness is better than the surface quality of the ordinary milling.
Description
Technical field
The present invention relates to a kind of milling process, side milling aluminium alloy technique is assisted in especially a kind of ultrasonic extensional vibration, belongs to Machining Technology field.
Background technology
Not only density is low, than powerful, conduction and good heat conductivity, and mechanical processability and decay resistance are good, are widely used in the industries such as aviation, automobile, petrochemical industry, electronic telecommunication for aluminium alloy.But aluminum alloy material is softer, greatly moulding, easily there is glutinous cutter when using traditional milling process to process aluminium alloy, cutter easily generates built-up edge, affects surface of the work machining accuracy and roughness.In order to improve the problems referred to above, ultrasonic vibration aided machining processes arises at the historic moment.Ultrasonic vibration secondary process refers in process, and handle of a knife or workpiece carry out a kind of special process mode that high frequency (20-60kHz), slightly (0-40 μm) vibrate.Ultrasonic vibration can reduce cutting force, heat in metal cutting, improves glutinous cutter phenomenon.Core component in ultrasonic vibration secondary process is single-excitation ultrasonic oval vibration energy converter and supersonic generator.The operation principle of single-excitation ultrasonic oval vibration energy converter utilizes piezoelectric inverse effect, and the supersonic frequency signal of telecommunication provided by supersonic generator is converted to ultrasonic vibration.Main in current ultrasonic vibration secondary process is ultrasonic extensional vibration transducer, and the design of this transducer and process technology are very ripe.But milling process is assisted in most of ultrasonic vibration, be that ultrasonic vibration is applied on workpiece, which has limited the range of application that milling process is assisted in ultrasonic vibration; What also have few ultrasonic vibration to assist milling process to adopt is ultrasonic torsion vibration transducer, and ultrasonic torsion vibration has been applied on handle of a knife, as Chinese patent application: " a kind of ultrasonic torsional side milling method in conjunction with stretched fixation " (application number 201210414295.8, publication number CN102922014A) describes a kind of ultrasonic torsional side milling method in conjunction with stretched fixation.What use in the method is a kind of ultrasonic torsion vibration transducer, but the production of current this twisting vibration transducer is still immature.
Based on above analysis, the invention provides a kind of ultrasonic extensional vibration and assist side milling aluminium alloy technique, what this technique adopted is ultrasonic extensional vibration transducer, and is ultrasonic extensional vibration be applied on handle of a knife.
Summary of the invention
The object of the present invention is to provide one to be easy to widely used ultrasonic extensional vibration and assist side milling aluminium alloy technique, improve glutinous cutter phenomenon during aluminium alloy milling, improve surface processing accuracy, reduce surface roughness.
For achieving the above object, the technical scheme that the present invention takes is: side milling aluminium alloy technique is assisted in a kind of ultrasonic extensional vibration, and cutter, when side milling, except being rotated the motion with direction of feed, also carries out the ultrasonic vibration of axial direction.Process unit of the present invention is made up of supersonic generator, ultrasonic extensional vibration handle of a knife and machine tool, and its concrete operation step is as follows:
Step 1: choose side milling cutter for same, and be installed on ultrasonic extensional vibration handle of a knife;
Step 2: start lathe, ultrasonic extensional vibration handle of a knife is installed on lathe, and fixes workpiece;
Step 3: start supersonic generator, the ultrasonic extensional vibration frequency of cutter is 20 ~ 40kHz, and ultrasonic extensional vibration amplitude is 0 ~ 20 μm, and sets working process parameter, starts Flank machining;
Step 4: after side milling terminates, closes supersonic generator and lathe, and takes off the workpiece that ultrasonic extensional vibration and handle of a knife process.
The invention has the advantages that: the production technology comparative maturity of the ultrasonic extensional vibration transducer adopted, is easy to extensive use; The glutinous cutter phenomenon that ultrasonic extensional vibration in the present invention assists side milling aluminium alloy technique can suppress in aluminum alloy materials milling process, the roughness on milling surface is better than the roughness on common milling surface.
Accompanying drawing explanation
In Fig. 1 the present invention, the schematic diagram of side milling aluminium alloy technique is assisted in ultrasonic extensional vibration;
Fig. 2 aluminium alloy side milling three-dimensional surface shape: (a) is common side milling result; B () is present invention process milling result.
Wherein: 1-machine tool, 2-supersonic generator, the ultrasonic extensional vibration handle of a knife of 3-, 4-spiral vertical milling cutter, 5-workpiece
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further.
As shown in Figure 1, device required for the present invention is made up of machine tool 1, supersonic generator 2, ultrasonic extensional vibration handle of a knife 3, helical end mills 4, workpiece 5.Under the drive of ultrasonic extensional vibration handle of a knife 3, helical end mills 4 carries out ultrasonic extensional vibration.Cutter, when side milling, except being rotated the motion with direction of feed, also carries out the ultrasonic vibration of axial direction.Process unit of the present invention is made up of supersonic generator, ultrasonic extensional vibration handle of a knife and machine tool, and except tool motion mode is different from common side milling process, other is as all identical with common side milling process in cooling fluid etc.Present invention process concrete operation step is as follows:
Step 1: choose side milling cutter for same, and be installed on ultrasonic extensional vibration handle of a knife;
Step 2: start lathe, ultrasonic extensional vibration handle of a knife is installed on lathe, and fixes workpiece;
Step 3: start supersonic generator, the ultrasonic extensional vibration frequency of cutter is 20 ~ 40kHz, and ultrasonic extensional vibration amplitude is 0 ~ 20 μm, and sets working process parameter, starts Flank machining;
Step 4: after side milling terminates, closes supersonic generator and lathe, and the workpiece taking off ultrasonic extensional vibration handle of a knife and process.
Figure 2 shows that aluminium alloy side milling three-dimensional surface shape contrasts, Fig. 2 a is common side milling result, Fig. 2 b is the milling result of present invention process, supersonic frequency used is 25kHz, amplitude is 4.5 μm, and other experiment parameter used in experiment is: rotating speed 5000rpm, feed speed 500mm/min, axial bite 16.5mm, radial bite 0.2mm.Comparison diagram 2a, b are known, and present invention process milling surface quality is higher, and surface roughness Sa is 0.25 μm, and common side milling surface is then 0.4 μm, and visible present invention process can improve the crudy on milling surface really.
Claims (4)
1. side milling aluminium alloy technique is assisted in a ultrasonic extensional vibration, it is characterized in that: cutter is when side milling, except being rotated the motion with direction of feed, also carry out the ultrasonic vibration of axial direction, the processing unit (plant) that this technique adopts is made up of supersonic generator, ultrasonic extensional vibration handle of a knife and machine tool, and the concrete operation step of this technique is as follows:
Step 1: choose side milling cutter for same, and be installed on ultrasonic extensional vibration handle of a knife;
Step 2: start lathe, ultrasonic extensional vibration handle of a knife is installed on lathe, and fixes workpiece;
Step 3: start supersonic generator, setting working process parameter, starts Flank machining;
Step 4: after side milling terminates, closes supersonic generator and lathe, and the workpiece taking off ultrasonic extensional vibration handle of a knife and process.
2. technique as claimed in claim 1, is characterized in that: the ultrasonic extensional vibration frequency of cutter is 20 ~ 40kHz, and ultrasonic extensional vibration amplitude is 0 ~ 20 μm.
3. technique as claimed in claim 1, is characterized in that: process parameters range described in step 3 is, rotating speed 1000 ~ 12000rpm, feed speed 0 ~ 10000mm/min, axial bite 0 ~ 25mm, radial bite 0 ~ 6mmm.
4. technique as claimed in claim 1, is characterized in that: the range of surface roughness of the workpiece processed is 0.1 ~ 0.3 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097320.8A CN104646739A (en) | 2015-03-05 | 2015-03-05 | Aluminum alloy side milling process under assistance of ultrasonic longitudinal vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097320.8A CN104646739A (en) | 2015-03-05 | 2015-03-05 | Aluminum alloy side milling process under assistance of ultrasonic longitudinal vibration |
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| Publication Number | Publication Date |
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| CN104646739A true CN104646739A (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510097320.8A Pending CN104646739A (en) | 2015-03-05 | 2015-03-05 | Aluminum alloy side milling process under assistance of ultrasonic longitudinal vibration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107775064A (en) * | 2017-09-28 | 2018-03-09 | 南昌大学 | A kind of lateral method for milling of single-blade based on torsional ultrasonic |
| CN109482948A (en) * | 2018-11-12 | 2019-03-19 | 西北工业大学 | In-situ authigenic type TiB2Particle enhanced aluminum-based composite material ultrasonic vibration assistance processing method |
| CN112620744A (en) * | 2020-12-10 | 2021-04-09 | 西北工业大学 | Difficult-to-process composite material TiB2Ultrasonic vibration assisted milling method for/7050 Al |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002219606A (en) * | 2001-01-22 | 2002-08-06 | Masao Murakawa | Ultrasonic milling device |
| JP2009241225A (en) * | 2008-03-31 | 2009-10-22 | Masahiko Jin | Ultrasonic spindle apparatus |
| CN101898298A (en) * | 2010-07-14 | 2010-12-01 | 天津大学 | Accessory non-contact power supply type rotary ultrasonic machining device |
| CN102922014A (en) * | 2012-10-25 | 2013-02-13 | 沈阳航空航天大学 | Ultrasonic torsional vibration side milling method in combination with stretching clamping |
| CN203197686U (en) * | 2013-03-22 | 2013-09-18 | 东莞华中科技大学制造工程研究院 | Ultrasonic machining knife handle |
-
2015
- 2015-03-05 CN CN201510097320.8A patent/CN104646739A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002219606A (en) * | 2001-01-22 | 2002-08-06 | Masao Murakawa | Ultrasonic milling device |
| JP2009241225A (en) * | 2008-03-31 | 2009-10-22 | Masahiko Jin | Ultrasonic spindle apparatus |
| CN101898298A (en) * | 2010-07-14 | 2010-12-01 | 天津大学 | Accessory non-contact power supply type rotary ultrasonic machining device |
| CN102922014A (en) * | 2012-10-25 | 2013-02-13 | 沈阳航空航天大学 | Ultrasonic torsional vibration side milling method in combination with stretching clamping |
| CN203197686U (en) * | 2013-03-22 | 2013-09-18 | 东莞华中科技大学制造工程研究院 | Ultrasonic machining knife handle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107775064A (en) * | 2017-09-28 | 2018-03-09 | 南昌大学 | A kind of lateral method for milling of single-blade based on torsional ultrasonic |
| CN107775064B (en) * | 2017-09-28 | 2019-02-26 | 南昌大学 | A kind of lateral method for milling of single-blade based on torsional ultrasonic |
| CN109482948A (en) * | 2018-11-12 | 2019-03-19 | 西北工业大学 | In-situ authigenic type TiB2Particle enhanced aluminum-based composite material ultrasonic vibration assistance processing method |
| CN109482948B (en) * | 2018-11-12 | 2020-02-14 | 西北工业大学 | In-situ self-generated TiB2Ultrasonic vibration auxiliary processing method for particle reinforced aluminum matrix composite material |
| CN112620744A (en) * | 2020-12-10 | 2021-04-09 | 西北工业大学 | Difficult-to-process composite material TiB2Ultrasonic vibration assisted milling method for/7050 Al |
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Application publication date: 20150527 |
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