CN104630694A - Ultrasonic metal workpiece surface permeation technique - Google Patents
Ultrasonic metal workpiece surface permeation technique Download PDFInfo
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- CN104630694A CN104630694A CN201510003514.7A CN201510003514A CN104630694A CN 104630694 A CN104630694 A CN 104630694A CN 201510003514 A CN201510003514 A CN 201510003514A CN 104630694 A CN104630694 A CN 104630694A
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Abstract
The invention relates to an ultrasonic metal workpiece surface permeation technique which comprises the following steps: coating a required metal or nonmetal power layer on the metal workpiece surface, carrying out ultrasonic working on the coating layer, wherein the ultrasonic vibration is utilized to combine the coating layer with the workpiece surface and permeate the substances of the coating layer into the workpiece surface layer. The fineness of the metal or nonmetal powder is at least 1000 meshes. In the ultrasonic working process, the pressure applied to the workpiece is 50-500kg, the ultrasonic vibration amplitude is 5-50 mu m, the frequency is 20-40 KHz, and the movement linear speed is not greater than 100 m/minute. The technique only needs to perform ultrasonic working on the coating layer without high-temperature heating; under the action of ultrasonic energy, the required elements can permeate into the metal workpiece surface layer, so that the metal workpiece surface is modified, and the workpiece surface layer has physical property changes; and the technique can enhance the hardness, wearability, corrosion resistance and other properties of the workpiece surface, refines the grain, and is simple to operate and low in cost.
Description
Technical field
The present invention relates to and a kind ofly carry out infiltrating metal or non-metal powder to improve the technique of its intensity, hardness, wear resistance or erosion resistance to workpiece surface, belong to workpiece surface processing technology field.
Background technology
By infiltrating other element at surface of workpiece, can improve the intensity of workpiece surface, hardness, wear resistance or erosion resistance, carburizing as is well known, nitriding heat treatment process, but these techniques need workpiece heat to certain high temperature, complex technical process, cost is high.
CN101781747B discloses one " method of alloy base material aluminising ", is to adopt 800# sand paper pre-grinding alloy base material surface, is then placed in acetone soln ultrasonic cleaning, then by AlCl3 powder or NH4Cl powder coated to the surface of alloy base material, obtains test specimen; With aluminium foil by coated for test specimen, and apply pressure, be then placed in sintering oven, in argon gas atmosphere, hydrogen atmosphere or vacuum, temperature is aluminising process under the condition of 500-1000 DEG C.Also be carry out under the hot conditions of 500-1000 DEG C, complex technical process, cost is high.
CN101812661B " a kind of piezoelectric ultrasonic salt-bath heating nitriding device ", comprises salt bath, hot-plate, wiring support column, the top cover in the housing of band thermal insulation layer, housing; On housing, symmetry is equipped with two cover piezoelectric type ultrasonic units, piezoelectric-type ultrasonic wave apparatus contains cumulative bar, oscillating plate, horn, voltage-type transverter and cooling tank, oscillating plate and cumulative bar are one-piece parts, oscillating plate is loaded in salt bath, and with horn with being threaded, the node place of horn and case weld are installed; Horn and piezoelectric transducer link into an integrated entity.This device passes through housing ultrasonic vibration on the basis of existing salt-bath heating nitriding technique, and improve nitriding speed and nitriding efficiency, but be also carry out under high temperature heating conditions, complex technical process, cost is high.
In addition, existing infiltration technique can only be carried out between metal.
Summary of the invention
The present invention is directed to existing workpiece surface and infiltrate the deficiency that technology of metal powder exists, a kind of simple to operate, ultrasonic wave metal workpiece surface osmosis process that cost is low is provided.
Ultrasonic wave metal workpiece surface osmosis process of the present invention, is:
First apply metal needed for one deck or non-metal powder at surface of workpiece, then ultrasonic machining is carried out to coat, impacted that by ultrasonic vibration coat and workpiece surface are combined, and make the penetration of coat enter in workpiece surface.
Metal or non-metal powder fineness be at least 1000 orders.
The ultrasonic cutter with roller cutterhead can be adopted during ultrasonic machining.
Be 5-500Kg to workpiece applied pressure during ultrasonic machining, ultrasonic amplitude is 5-50 μm, and frequency is 10-40KHz, and during ultrasonic machining, tool heads and workpiece relative movement linear velocity are not more than 150m/min.Concrete numerical value needs according to metal work piece materials and the powdered material that combines and determines.
The present invention only need carry out ultrasonic machining (high-frequency vibration impact under a certain pressure) to coat, do not need heat, carrying out impact by ultrasonic wave promotion tool heads to metallic surface makes metal works top layer infiltrate required element, make the modification of metal works top layer, workpiece surface generation physical properties is changed, the hardness of workpiece surface, wear resistance, erosion resistance or other performance can be improved, and make grain refining, simple to operate, cost is low.
Accompanying drawing explanation
Fig. 1 is the surperficial metallographic structure figure (amplifying 2800 times) before D36# steel osmotic treated.
Fig. 2 is to the surperficial metallographic structure figure (amplifying 2800 times) after the process of D36# steel surface infiltration chromium element by method of the present invention.
Fig. 3 is the surperficial metallographic structure figure before 45# steel osmotic treated.
Fig. 4 is to the surperficial metallographic structure figure (nanocrystalline nested with amorphous) after the process of 45# steel surface penetration chromium element by method of the present invention.
Fig. 5 is the change schematic diagram of hardness through-thickness before and after the process of 45# steel surface penetration chromium element.
Embodiment
Embodiment 1
At the nano level chromium powder end of the surface-coated (can be bonding) of D36# steel, by the ultrasonic cutter with roller cutterhead, high-frequency ultrasonic vibratory impulse is carried out to its surface.Ultrasonic cutter applies the pressure of 200Kg to workpiece, and ultrasonic amplitude is 20 μm, and frequency is 30KHz, and ultrasonic tool head and workpiece relative linear velocity are 40m/min, and its surperficial metallographic structure changes, as shown in Figure 2.Contrasted by Fig. 1 and Fig. 2, can find out that, to after D36# steel osmotic treated, its surface grain refinement, makes hardness, wear resistance and erosion resistance all be improved.
Embodiment 2
At the upper nano level chromium powder end of the surface-coated (can be bonding) of 45# steel, by the ultrasonic cutter with roller cutterhead, high-frequency ultrasonic vibratory impulse is carried out to its surface.Ultrasonic cutter applies the pressure of 150Kg to workpiece, and ultrasonic amplitude is 25 μm, and frequency is 20KHz, and ultrasonic tool head and workpiece relative linear velocity are 20m/min, and the metallographic structure on its surface changes, as shown in Figure 4.Contrasted by Fig. 3 and Fig. 4, can find out after infiltrating chromium element to 45# steel, its surface grain refinement, in effects on surface ultrasonic machining process, metal material surface viscous deformation, along with the increase of time, distortion increases gradually.After ultrasonication, there is crystallite state and amorphous structure in specimen surface, and 45 steel surface hardnesses are improved.The change of hardness before and after 45# steel osmotic treated is given by Fig. 5.
Embodiment 3
At the upper nanometer scale ceramics powder of the surface-coated (can be bonding) of 40Cr steel, by the ultrasonic cutter with roller cutterhead, high-frequency ultrasonic vibratory impulse is carried out to its surface.Ultrasonic cutter applies the pressure of 200Kg to workpiece, and ultrasonic amplitude is 25 μm, and frequency is 20KHz, and ultrasonic cutter tool heads and workpiece relative linear velocity are 45m/min.Improve hardness and the erosion resistance of 45# steel surface.
Ultrasonic cutter needs to determine according to metal work piece materials and the powdered material that combines to workpiece applied pressure and ultrasonic amplitude, frequency and ultrasonic tool head and workpiece relative linear velocity, does not enumerate at this.
Claims (3)
1. a ultrasonic wave metal workpiece surface osmosis process, it is characterized in that: first apply metal needed for one deck or non-metal powder at surface of workpiece, then ultrasonic machining is carried out to coat, being impacted by ultrasonic vibration makes coat and workpiece surface combine, and makes the penetration of coat enter in workpiece surface.
2. ultrasonic wave metal workpiece surface osmosis process according to claim 1, is characterized in that: the fineness of described metal or non-metal powder is at least 1000 orders.
3. ultrasonic wave metal workpiece surface osmosis process according to claim 1, it is characterized in that: be 5-500Kg to workpiece applied pressure during described ultrasonic machining, ultrasonic amplitude is 5-50 μm, frequency is 10-40KHz, and during ultrasonic machining, the relative moving speed of tool heads and workpiece is not more than 150m/min.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984179.7A CN109267004A (en) | 2015-01-05 | 2015-01-05 | A kind of ultrasonic wave metal workpiece surface osmosis process |
| CN201510003514.7A CN104630694A (en) | 2015-01-05 | 2015-01-05 | Ultrasonic metal workpiece surface permeation technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510003514.7A CN104630694A (en) | 2015-01-05 | 2015-01-05 | Ultrasonic metal workpiece surface permeation technique |
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| CN201810984179.7A Division CN109267004A (en) | 2015-01-05 | 2015-01-05 | A kind of ultrasonic wave metal workpiece surface osmosis process |
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| CN104630694A true CN104630694A (en) | 2015-05-20 |
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| CN201810984179.7A Pending CN109267004A (en) | 2015-01-05 | 2015-01-05 | A kind of ultrasonic wave metal workpiece surface osmosis process |
| CN201510003514.7A Pending CN104630694A (en) | 2015-01-05 | 2015-01-05 | Ultrasonic metal workpiece surface permeation technique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862688A (en) * | 2015-05-29 | 2015-08-26 | 山东鑫茂奥奈特复合固体润滑工程技术有限公司 | Method for embedding nano-diamond into metal surface by utilizing ultrasonic waves |
| CN106835006A (en) * | 2017-03-01 | 2017-06-13 | 中南大学 | A kind of ultrasonic nitriding means of defence of used in aluminium alloy casting titanium alloy radiation |
| CN111378940A (en) * | 2018-12-27 | 2020-07-07 | 廊坊京磁精密材料有限公司 | Magnetron sputtering coating process for sheet magnet |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113957434B (en) * | 2021-10-22 | 2022-11-04 | 燕山大学 | Method for preparing high-hardness and high-wear-resistance cladding layer on surface of low-carbon steel |
-
2015
- 2015-01-05 CN CN201810984179.7A patent/CN109267004A/en active Pending
- 2015-01-05 CN CN201510003514.7A patent/CN104630694A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862688A (en) * | 2015-05-29 | 2015-08-26 | 山东鑫茂奥奈特复合固体润滑工程技术有限公司 | Method for embedding nano-diamond into metal surface by utilizing ultrasonic waves |
| CN106835006A (en) * | 2017-03-01 | 2017-06-13 | 中南大学 | A kind of ultrasonic nitriding means of defence of used in aluminium alloy casting titanium alloy radiation |
| CN111378940A (en) * | 2018-12-27 | 2020-07-07 | 廊坊京磁精密材料有限公司 | Magnetron sputtering coating process for sheet magnet |
| CN111378940B (en) * | 2018-12-27 | 2022-04-26 | 廊坊京磁精密材料有限公司 | Magnetron sputtering coating process for sheet magnet |
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| Publication number | Publication date |
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| CN109267004A (en) | 2019-01-25 |
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Application publication date: 20150520 |