CN102974910B - Skive induction brazing device and method for welding - Google Patents
Skive induction brazing device and method for welding Download PDFInfo
- Publication number
- CN102974910B CN102974910B CN201210456169.9A CN201210456169A CN102974910B CN 102974910 B CN102974910 B CN 102974910B CN 201210456169 A CN201210456169 A CN 201210456169A CN 102974910 B CN102974910 B CN 102974910B
- Authority
- CN
- China
- Prior art keywords
- skive
- induction
- base body
- grinding wheel
- wheel base
- 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
Abstract
The invention discloses a kind of skive induction brazing device and method for welding, the wherein brazing device induction coil that comprises induction power supply and be electrically connected with induction power supply, also comprise the emery wheel slewing equipment of a fixed diamond grinding wheel base body, the excircle that described induction coil is positioned at described skive matrix becomes spot distribution, has a gas shield cover in described induction coil outer setting; This gas shield cover is connected with inert gas source.Skive induction brazing of the present invention solves the problems such as braze cycle is grown, grinding wheel base body heat distortion amount is large that current vacuum furnace brazing technique exists.In brazing process, heating region concentrates on grinding wheel base body top layer, effectively can eliminate the heat distortion amount of grinding wheel base body in brazing process, is conducive to single layer soldering skive and is applied to efficient precise grinding processing; Secondly, matrix surface temperature is made can to rise to brazing temperature rapidly; Finally, greatly shorten the fabrication cycle of skive, improve soldering efficiency.
Description
Technical field
The present invention relates to super hard abrasive field of tool, be specifically related to a kind of skive induction brazing device and method.
Background technology
Begin one's study with soldering replacement plating Development of New Generation single layer soldering super hard abrasive instrument in early 1990s abroad, make solder occur such as to dissolve on abrasive particle and metallic matrix interface by high temperature brazing, spread, the interaction of chemical combination and so on, fundamentally improve abrasive material, bonding agent (brazing filler metal alloy), the triangular bond strength of matrix.Compared with traditional individual layer plating tool, doctor has obvious advantage in abrasive particle proud exposure, grinding force, life tools etc.In addition, the abrasive particle on doctor surface can the sparse and ordered arrangement of appropriateness, and this had both been conducive to washing away abrasive dust, turn improved implement productivity.Just therefore, Study on Brazed Superabrasive Tools is extensively had an optimistic view of, it is the best regeneration product of plating tool, at present by expert authority high evaluation for being one of the super hard abrasive tool-making creativity and innovation with definite meaning, immeasurable techno-economic effect will be produced after large scale application aborning from now on.
At present, the manufacture of single layer soldering skive is mainly carried out in a vacuum furnace, and carry out entirety heating to metallic matrix, for large-sized grinding wheel base body, after soldering, the control of deflection is very difficult; On the other hand, the programming rate of vacuum drying oven is slow, and the fabrication cycle of instrument is long, and equipment investment is large, and production method is complicated, and cost compare is high.In addition, because the furnace cavity of vacuum drying oven is limited, workpiece size receives certain restriction, and exceeding the large-scale grinding wheel base body of furnace cavity for size directly cannot carry out soldering.Current solution is generally adopt insert split type, is assembled into final skive again after independent for insert soldering being completed.Owing to there is error in assembling process, therefore the overall precision of block insert type single layer soldering skive is not high, applies very few in high-accuracy grinding.
In the last few years, researcher both domestic and external proposes induction brazing technique, its starting point utilizes eddy-current heating speed fast, and mode of heating flexibly and the advantage such as local heat can make up the defect of overall mode of heating in vacuum drying oven, makes up the problems referred to above existed in furnace brazing technique by this.But researcher adopts induction frequencies at below 100kHz in the induction brazing technique of super hard abrasive both at home and abroad at present, and firing rate is slow; And the induction coil used is in the majority with the scroll of individual pen or multi-turn, workpiece is positioned over coil inside or below, the mode that brazing process remains matrix carries out overall eddy-current heating is carried out, and thus cannot solve heating region in brazing process comparatively large and cause that soldering efficiency is low, the problem of matrix thermal deformation.In addition, the relevant report adopting eddy-current heating continuous braze welding to make super hard abrasive scroll saw although existing, the problem made for large-sized single layer soldering skive need to solve.
Summary of the invention
Cause that soldering efficiency is low, the problem of matrix thermal deformation to solve the comparatively large of heat-affected zone in brazing process, the advantage of further performance super hard abrasive instrument induction brazing technique, make up the deficiency of current vacuum furnace brazing, the object of this invention is to provide the method for the continuous induction brazing of a kind of single layer soldering skive hyperfrequency, adopt and there is programming rate is fast, heating is concentrated hyperfrequency induction heating power as its thermal source, eliminate the heat distortion amount of matrix in brazing process; Also greatly shorten the fabrication cycle of skive simultaneously, improve soldering efficiency.
Present invention also offers programming rate fast, local heat, and grinding wheel base body heat distortion amount is little, the single layer soldering skive induction brazing device and method that production efficiency is high.
Technical scheme of the present invention is as follows:
A kind of skive induction brazing device, the induction coil comprising induction power supply and be electrically connected with induction power supply, it is characterized in that: the emery wheel slewing equipment also comprising a fixed diamond grinding wheel base body, the excircle that described induction coil is positioned at described skive matrix becomes spot distribution, has a gas shield cover in described induction coil outer setting; This gas shield cover is connected with inert gas source.
Described induction coil quantity is 1 ~ 3.
Grinding wheel base body diameter is between 300mm ~ 1000mm.
Range of speeds continuously adjustabe between 0.03rpm ~ 0.2rpm of described emery wheel slewing equipment.
Between the operating frequency 500kHz-2MHz of described induction power supply, between heating current 20A-30A.
Described induction coil is single loop line.
Described induction coil comprises grooved magnetic conductor and shape copper tube, and grooved magnetic conductor offers groove, in described square copper tube embedded groove.
Described inert gas source is Ar gas.
A kind of skive induction brazing method, it is characterized in that: carry out in line heating process at induction coil to the working surface of skive matrix, skive matrix slowly can rotate with constant rotating speed under the drive of assembling device at emery wheel, thus the mode continuous braze welding that line adds the movement of thermal relative scanning is carried out to grinding wheel base body, when grinding wheel base body rotates a circle, namely complete the soldering to whole skive.
The method of skive hyperfrequency of the present invention induction brazing, adopt and have that programming rate is fast, local heat, frequency are that the hyperfrequency induction heating power of 500kHz-2MHz is as its thermal source, induction coil shape is single loop line, line heating is carried out to the working surface of grinding wheel base body, heating process medium plain emery wheel matrix slowly rotates with constant rotating speed, thus the mode continuous braze welding that line adds the movement of thermal relative scanning is carried out to grinding wheel base body, when grinding wheel base body rotates a circle, namely complete the soldering of whole skive.
After adopting such scheme, the method of the continuous induction brazing of skive hyperfrequency of the present invention, utilize hyperfrequency eddy-current heating speed fast, the advantage that heating is concentrated, and the mode adopting line to add the movement of thermal relative scanning carries out continuous braze welding to skive, solve the problems such as braze cycle is grown, grinding wheel base body heat distortion amount is large that current vacuum furnace brazing soldering processes exist.First, due to the kelvin effect of hyperfrequency alternating current, in brazing process, heating region concentrates on grinding wheel base body top layer, effectively can eliminate the heat distortion amount of matrix in brazing process, is conducive to single layer soldering skive and is applied to efficient precise grinding processing; Secondly, single loop line mode of heating is conducive to the uniformity ensureing heating region temperature, utilizes the special magnetic conductor of hyperfrequency to improve the efficiency of heating surface simultaneously, makes grinding wheel base body surface temperature can rise to brazing temperature rapidly; Finally, adopt line to add the continuous braze welding mode of thermal relative scanning movement, greatly shorten the fabrication cycle of skive, improve soldering efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation that described skive hyperfrequency sense of continuity of the present invention answers brazing device.In figure: 1---grinding wheel base body, 2---gas shield cover, 3---induction coil, 4---hyperfrequency induction heating power, 5---emery wheel slewing equipment;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is induction coil place partial enlarged drawing in Fig. 2.
Detailed description of the invention
The method of skive hyperfrequency of the present invention induction brazing, adopt and have that programming rate is fast, local heat, frequency are that the hyperfrequency induction heating power of 1MHz is as its thermal source, induction coil shape is single loop line, line heating is carried out to the working surface of grinding wheel base body, heating process medium plain emery wheel matrix slowly rotates with constant rotating speed, thus grinding wheel base body carries out the mode continuous braze welding that line adds the movement of thermal relative scanning, when grinding wheel base body rotates a circle, namely complete the soldering to whole skive.
The device of skive hyperfrequency of the present invention induction brazing, as shown in Figure 1-Figure 3, comprises grinding wheel base body 1, emery wheel slewing equipment 5, VHF source power 4, induction coil 3, is arranged on the gas shield cover 2 of induction coil outside; Gas shield cover 2 is connected with inert gas source.
The diameter of grinding wheel base body 1 is 400mm, for flat surface grinding.
Induction coil 3 comprises flute profile magnetic conductor 31, square copper tube 32.Wherein, square copper tube 32 is conducting elements, the poly-magnetic cell of flute profile magnetic conductor.Flute profile magnetic conductor 31 is the special magnetic conductors of hyperfrequency, and square copper tube 32 embeds in the groove of flute profile magnetic conductor 31.Flute profile magnetic conductor 31 normally can work under the frequency of 1MHz, and its relative permeability is about 20.During work, square copper tube 32 inside, by ultrahigh-frequency current, under the magnet accumulating cap of flute profile magnetic conductor 31, improves square copper tube 32 just to the magnetic field intensity in grinding wheel base body 1 direction.
Emery wheel slewing equipment 5 drives grinding wheel base body 1 to rotate, and rotating speed is 0.04rpm, ensures that grinding wheel base body 1 linear velocity is at 1mm/s.
The operating frequency of VHF source power 4 is 1MHz, heating current about 25A.
Gas shield cover 2 adopts quartz glass to make, and conveniently observes real-time brazing process.Suitable gap is left in gas shield cover 2 and grinding wheel base body 1 side, and inertia source of the gas Ar gas passes into above the side of gas shield cover 2, and discharge from described gap, Ar throughput is not less than 40L/min.
During work, as shown in Figure 2, emery wheel slewing equipment 5 drives grinding wheel base body 1 counterclockwise slowly to rotate, and the hyperfrequency induction field formed by induction coil 3 carries out local heat to grinding wheel base body 1 surface, thus carries out the mode continuous braze welding that line adds the movement of thermal relative scanning.Gas shield cover 2 is guaranteed to form inert protective atmosphere in brazing area.When grinding wheel base body 1 rotates a circle, namely complete the soldering to whole skive.
After adopting such scheme, the method of the continuous induction brazing of skive hyperfrequency of the present invention, utilize hyperfrequency eddy-current heating speed fast, the advantage that heating is concentrated, and the mode adopting line to add the movement of thermal relative scanning carries out continuous braze welding to skive, solve the problems such as braze cycle is grown, grinding wheel base body heat distortion amount is large that current vacuum furnace brazing soldering processes exist.First, due to the kelvin effect of hyperfrequency alternating current, in brazing process, heating region concentrates on grinding wheel base body top layer, effectively can control the heat distortion amount of matrix in brazing process, is conducive to single layer soldering skive and is applied to efficient precise grinding processing; Secondly, adopt the special magnetic conduction physical efficiency of hyperfrequency to improve the efficiency of heating surface, make grinding wheel base body surface temperature can rise to brazing temperature rapidly; Finally, adopt line to add the continuous braze welding mode of thermal relative scanning movement, greatly shorten the fabrication cycle of skive, improve soldering efficiency.
Although it is noted that by reference to the accompanying drawings and embodiment to invention has been detailed description, design of the present invention is not limited thereto, and allly utilizes design of the present invention to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading scope.
Claims (4)
1. a skive induction brazing device, the induction coil comprising induction power supply and be electrically connected with induction power supply, it is characterized in that: the emery wheel slewing equipment also comprising a fixed diamond grinding wheel base body, the excircle that described induction coil is positioned at described skive matrix becomes spot distribution, has a gas shield cover in described induction coil outer setting; This gas shield cover is connected with inert gas source; Described induction coil is single loop line; Grinding wheel base body diameter is between 300mm ~ 1000mm; Between the operating frequency 500kHz-2MHz of described induction power supply, between heating current 20A-30A.
2. skive induction brazing device according to claim 1, is characterized in that: described induction coil comprises grooved magnetic conductor and square copper tube, and grooved magnetic conductor offers groove, in described square copper tube embedded groove.
3. skive induction brazing device according to claim 1, is characterized in that: described inert gas source is Ar gas.
4. one kind based on skive induction brazing device according to claim 1 method for welding, it is characterized in that: carry out in line heating process at induction coil to the working surface of skive matrix, skive matrix slowly rotates with constant rotating speed under the drive of emery wheel slewing equipment, thus the mode continuous braze welding that line adds the movement of thermal relative scanning is carried out to grinding wheel base body, when grinding wheel base body rotates a circle, namely complete the soldering to whole skive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210456169.9A CN102974910B (en) | 2012-11-14 | 2012-11-14 | Skive induction brazing device and method for welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210456169.9A CN102974910B (en) | 2012-11-14 | 2012-11-14 | Skive induction brazing device and method for welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102974910A CN102974910A (en) | 2013-03-20 |
| CN102974910B true CN102974910B (en) | 2015-07-29 |
Family
ID=47849416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210456169.9A Active CN102974910B (en) | 2012-11-14 | 2012-11-14 | Skive induction brazing device and method for welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102974910B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949746B (en) * | 2014-04-25 | 2017-01-11 | 南京航空航天大学 | Inductor structure for special-shaped ultra-hard abrasive grinding wheel ultra-high frequency induction brazing and heating method |
| CN105414800B (en) * | 2016-01-11 | 2017-10-27 | 苏州科技大学 | High-frequency induction heating ultrasonic vibration aids in mono-layer diamond brazed abrasive wheel preparation method |
| CN111014866A (en) * | 2019-12-24 | 2020-04-17 | 邯郸慧桥复合材料科技有限公司 | Brazing method for wear-resistant sheet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4239502A (en) * | 1978-11-17 | 1980-12-16 | General Electric Company | Diamond and cubic boron nitride grinding wheels with improved silver alloy bonds |
| CN1597219A (en) * | 2004-09-08 | 2005-03-23 | 华侨大学 | Preparation method of single layer soldering diamond tool |
| CN101032773A (en) * | 2007-04-18 | 2007-09-12 | 南京三超金刚石工具有限公司 | Method and device for the braze welding of tool made of superhard material |
| CN201446328U (en) * | 2009-05-31 | 2010-05-05 | 徐州华谐科技发展有限公司 | Superhard abrasive wire saw device for manufacturing induction brazing |
| CN102059423A (en) * | 2010-11-30 | 2011-05-18 | 中原工学院 | Method for manufacturing diamond tool with self-lubrication function |
| CN102615414A (en) * | 2012-04-01 | 2012-08-01 | 项大清 | Automatic millstone welder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08108369A (en) * | 1994-08-19 | 1996-04-30 | Goei Seisakusho:Kk | Grinding wheel tool and its manufacture |
| TWI339612B (en) * | 2008-07-02 | 2011-04-01 | Kinik Co | Cutting wheel with surface modification and method for manufacturing the same |
-
2012
- 2012-11-14 CN CN201210456169.9A patent/CN102974910B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4239502A (en) * | 1978-11-17 | 1980-12-16 | General Electric Company | Diamond and cubic boron nitride grinding wheels with improved silver alloy bonds |
| CN1597219A (en) * | 2004-09-08 | 2005-03-23 | 华侨大学 | Preparation method of single layer soldering diamond tool |
| CN101032773A (en) * | 2007-04-18 | 2007-09-12 | 南京三超金刚石工具有限公司 | Method and device for the braze welding of tool made of superhard material |
| CN201446328U (en) * | 2009-05-31 | 2010-05-05 | 徐州华谐科技发展有限公司 | Superhard abrasive wire saw device for manufacturing induction brazing |
| CN102059423A (en) * | 2010-11-30 | 2011-05-18 | 中原工学院 | Method for manufacturing diamond tool with self-lubrication function |
| CN102615414A (en) * | 2012-04-01 | 2012-08-01 | 项大清 | Automatic millstone welder |
Non-Patent Citations (2)
| Title |
|---|
| 导引高频磁通感应钎焊制作金刚石砂轮;马伯江等;《中国机械工程》;20090210;第20卷(第03期);第358-360页 * |
| 镍基合金钎料高频感应钎焊金刚石试验研究;徐正亚等;《中国机械工程》;20100831;第21卷(第16期);第1978页左栏第3段至第1980页右栏第2段，附图2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102974910A (en) | 2013-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103817610B (en) | A kind of manufacture method of Furnace Brazing of Diamond Grinding Wheel With Ni | |
| CN102974910B (en) | Skive induction brazing device and method for welding | |
| CN102513632B (en) | Preparation method oriented to fine-grain diamond abrasive material single-layer soldering tool | |
| CN103522206B (en) | The distributing technique of one-shot forming Study on Brazed Superabrasive Tools | |
| CN105562825A (en) | Metallic-bond complicated-surface diamond saw blade and 3D printing and making process thereof | |
| CN102019572A (en) | Polishing process adopting combined spiral polishing path | |
| CN103203688A (en) | Micro-scale grinding online electrolytic dressing device and method thereof | |
| CN105945737A (en) | Brazing type diamond grinding wheel used for high-precision grinding and manufacturing method | |
| CN105216120A (en) | A kind of diamond cutter and preparation method thereof, diamond compound tool | |
| CN101699571B (en) | Method for manufacturing internal conducting rod of large-scaled high-frequency resonant cavity | |
| CN203778882U (en) | Multifunctional soldering diamond saw blade | |
| CN104526579A (en) | Diamond grinding block binding agent formula | |
| CN103949746B (en) | Inductor structure for special-shaped ultra-hard abrasive grinding wheel ultra-high frequency induction brazing and heating method | |
| CN110760841B (en) | Preparation method of amorphous nanocrystalline coating on aluminum alloy surface | |
| CN207273008U (en) | Diamond dresser | |
| CN104493341B (en) | Shield electric machine stator can and lower flange welding method and the equipment using thereof | |
| CN104775120A (en) | Multifunctional electric discharge machine | |
| CN103521751A (en) | Method for machining metal matrix thin-wall diamond bit | |
| CN105729308A (en) | Brazing type diamond truing pens and processing method | |
| CN206263716U (en) | A kind of on-line automatic arrangement for grinding of welding wheel | |
| CN211638637U (en) | Robot intersecting line cutting and welding integrated machine | |
| CN102151936B (en) | Grind shoe manufacture method and tool | |
| CN204752850U (en) | Multi -functional electric spark machine | |
| CN203484719U (en) | Low-speed dry drilling brazing diamond bit | |
| CN104174960A (en) | High-frequency brazing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211224 Address after: No. 29, Qinhuai District, Qinhuai District, Nanjing, Jiangsu Patentee after: Nanjing University of Aeronautics and Astronautics Asset Management Co.,Ltd. Address before: Yudaojie Baixia District of Nanjing City, Jiangsu Province, No. 29 210016 Patentee before: Nanjing University of Aeronautics and Astronautics |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220127 Address after: Room 703-29, block C, Kechuang headquarters building, No. 320, pubin Road, Nanjing, Jiangsu 211899 Patentee after: Jiangsu Hangpu Guochuang Composite Material Research Institute Co.,Ltd. Address before: No. 29, Qinhuai District, Qinhuai District, Nanjing, Jiangsu Patentee before: Nanjing University of Aeronautics and Astronautics Asset Management Co.,Ltd. |