CN105583292A - Combined machining device and method for micropores with large ratio of pit-depth to pit-diameter based on indentation pre-molten bath effect - Google Patents

Combined machining device and method for micropores with large ratio of pit-depth to pit-diameter based on indentation pre-molten bath effect Download PDF

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Publication number
CN105583292A
CN105583292A CN201610019583.1A CN201610019583A CN105583292A CN 105583292 A CN105583292 A CN 105583292A CN 201610019583 A CN201610019583 A CN 201610019583A CN 105583292 A CN105583292 A CN 105583292A
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Prior art keywords
sheet metal
processed
pit
coining
etchant solution
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CN201610019583.1A
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CN105583292B (en
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石广丰
史国权
蔡洪彬
李学光
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Changchun University of Science and Technology
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Changchun University of Science and Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)

Abstract

The invention relates to a combined machining device for micropores with large ratio of pit-depth to pit-diameter based on indentation pre-molten bath effect, comprising a to-be-machined sheet metal, a diamond indenter used for coining the to-be-machined sheet metal, and a precise dripping and sucking solution device used for containing an etchant solution corresponding to the to-be-machined sheet metal, wherein the to-be-machined sheet metal is arranged on a transparent glass rack, universal PH test paper is arranged between the to-be-machine sheet metal and the transparent glass rack, and a colored CCD video image collecting system is arranged at the lower part of the transparent glass rack. The invention also provides a corresponding machining method. The device and the method can realize controllability of a pore-forming process and sufficiently combine the advantages of mechanical coning machining and corrosive machining, is efficient, high in controllability and high in precision, is applicable to forming machining of single-side micropores with large ratio of pit-depth to pit-diameter of a material with large thickness, can effectively control the dimension of pores formed at the bottom of the to-be-machined sheet metal, and can effectively eliminate the influence of mechanism stress to deformation of a sample piece of a to-be-machined material in pore forming purely depending on coining, thus ensuring the micropore forming quality.

Description

Based on large aspect ratio micropore complex machining device and the method for the pre-bath effect of impression
Technical field
The micropore shaping processing technique field that the present invention relates to metal material, specifically relates to based on impressionLarge aspect ratio micropore complex machining device and the method for pre-bath effect.
Background technology
By the methods such as mechanical drilling of the prior art, punching press, the special process be difficult to realize large thickness,The metal material ultramicropore of large aspect ratio is shaped and processes.
Although depending on merely the coining processing of the blunt round effect of diamond can realize large to a certain extentThe metal material micropore of aspect ratio is shaped, and is pressed the whole of workpiece but the mechanical stress producing can causeBody deformability and bottom protrusion, and pressure head tip is easily pressed saturating material bottom and is caused tip and substrate materialThe dual destruction of material.
The capillary processing technological controllability of simple dependence corrosion or electrochemical etching method is poor, is difficult to realizeUltramicropore is processed the metal material micropore shaping processing of large thickness, large aspect ratio.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of large dark footpath based on the pre-bath effect of impressionThan micropore complex machining device and method, for solving above-mentioned deficiency.
For solving the problems of the technologies described above, the invention provides following technical scheme: based on the pre-bath effect of impressionThe large aspect ratio micropore complex machining device of answering, comprises sheet metal to be processed, for coining gold to be processedBelong to sheet diamond penetrator, be equipped with the precision of the corresponding etchant solution of sheet metal to be processed and drip suction solutionDevice, described sheet metal to be processed is positioned in clear glass frame, and described sheet metal to be processed is with saturatingBetween bright glass frame, be also provided with general-purpose PH test paper, described clear glass frame lower is provided with and ten thousandWith the corresponding colored CCD Video Image Collecting System Based of PH test paper.
Based on the large aspect ratio micropore combined machining method of the pre-bath effect of impression, comprising:
(1) coining preform: for the sheet metal to be processed of specific thicknesses, adopt diamond penetrator pairSheet metal ad-hoc location to be processed carries out the vertical coining of certain depth; In sheet metal to be processed bottom phaseLeave certain residual thickness for its bottom surface, form the pre-molten bath of impression;
(2) place exemplar: the sheet metal to be processed after coining is placed in clear glass frame,Accompany general-purpose PH test paper between the two;
(3) splash into etchant solution: select the etchant solution corresponding with sheet metal to be processed, adopt essenceClose suction solution device splashes into this etchant solution of specified quantitative in the pre-molten bath of impression central authorities;
(4) on-line monitoring: calculate reflecting time according to etching characteristic, by being arranged at clear glass machineChange color, the dyeing profit of the colored CCD Video Image Collecting System Based identification general-purpose PH test paper of frame bottomThe degree of expansion of wetted surface; According to corrosiveness characteristic, judge monitor signal parameters and metal to be processedNumerical relation between sheet bottom forming hole size, arranges pilot signal threshold value;
(5) siphon away etchant solution: according to specific sheet metal bottom forming hole size to be processed and pore-forming matterAmount, in conjunction with monitoring threshold value, blots etchant solution in advance, and the micropore of realizing sheet metal to be processed bottom becomesShape processing.
The beneficial effect that the present invention compared with prior art has is: first the present invention presses by diamondMechanical coining is processed large thickness metal to be processed and is realized taper hole preform, recycling impression preformBath effect, by splashing into chemical attack solution, pore-forming is corroded in impression bottom, realized one-tenthThe controllability of hole process. This device and method fully combines the excellent of mechanical coining processing and corrosion processingPoint, efficient, controllability is high, precision is high, applicable to the one-sided micropore of large aspect ratio of large thickness materialProcessing is shaped; Can effectively control sheet metal bottom forming hole size to be processed, effectively eliminate simple dependence and printThe impact of mechanical stress while pressing processing pore-forming on the distortion of machined material exemplar, has ensured ultramicropore one-tenthThe quality of shape.
Brief description of the drawings
Fig. 1 is the preformed structural representation of the present invention's sheet metal coining to be processed;
Fig. 2 is the structural representation of the present invention's sheet metal corrosion to be processed pore-forming.
Number in the figure is: 1-diamond penetrator, 2-sheet metal to be processed, the pre-bath of 3-impression, 4-essenceInhale solution device, 5-etchant solution, 6-general-purpose PH test paper, 7-clear glass frame, 8-colour for closeCCD Video Image Collecting System Based.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawingAnd embodiment, the present invention is further elaborated. Should be appreciated that described herein concreteEmbodiment only, in order to explain the present invention, is not intended to limit the present invention.
In description of the invention, it will be appreciated that, term " longitudinally ", " laterally ", " on ", D score,'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward "Orientation or position relationship Deng instruction are based on orientation shown in the drawings or position relationship, are only for justIn describing the present invention, instead of instruction or the hint device of indication or element must have specific orientation,With specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
See figures.1.and.2 known, based on the large aspect ratio micropore Compound Machining of the pre-bath effect of impressionDevice, comprise sheet metal to be processed, for the diamond penetrator of coining sheet metal to be processed, be equipped withThe precision of the corresponding etchant solution of sheet metal to be processed is dripped and is inhaled solution device, and described sheet metal to be processed is putBe placed in clear glass frame, between described sheet metal to be processed and clear glass frame, be also provided with ten thousandUse PH test paper, described clear glass frame lower is provided with the colored CCD corresponding with general-purpose PH test paperVideo Image Collecting System Based.
Its processing method, comprising:
(1) coining preform: for the sheet metal to be processed of specific thicknesses, adopt diamond penetrator pairSheet metal ad-hoc location to be processed carries out the vertical coining of certain depth; In sheet metal to be processed bottom phaseLeave certain residual thickness for its bottom surface, form the pre-molten bath of impression;
(2) place exemplar: the sheet metal to be processed after coining is placed in clear glass frame,Accompany general-purpose PH test paper between the two;
(3) splash into etchant solution: select the etchant solution corresponding with sheet metal to be processed, adopt essenceClose suction solution device splashes into this etchant solution of specified quantitative in the pre-molten bath of impression central authorities;
(4) on-line monitoring: calculate reflecting time according to etching characteristic, by being arranged at clear glass machineChange color, the dyeing profit of the colored CCD Video Image Collecting System Based identification general-purpose PH test paper of frame bottomThe degree of expansion of wetted surface; According to corrosiveness characteristic, judge monitor signal parameters and metal to be processedNumerical relation between sheet bottom forming hole size, arranges pilot signal threshold value;
(5) siphon away etchant solution: according to specific sheet metal bottom forming hole size to be processed and pore-forming matterAmount, in conjunction with monitoring threshold value, blots etchant solution in advance, and the micropore of realizing sheet metal to be processed bottom becomesShape processing.
First the present invention processes large thickness sheet metal to be processed by diamond penetrator machinery coining and realizesThe taper hole preform of certain depth and tapering, leaves one in sheet metal to be processed bottom with respect to its bottom surfaceFixed residual thickness, forms the pre-molten bath of impression; The preformed bath effect of recycling impression, by drippingEntering a certain amount of chemical attack solution corrodes impression bottom. Under taper hole shape gradient effect,Etchant solution, along with taper hole tip is goed deep into gradually, erodes the residual thickness of sheet metal to be processed bottomAnd formation micropore. The length of etching time with become hole size, taper hole drift angle, etchant solution dosage and spyProperty, etchant solution, material effects characteristic and be scored bottom residual thickness relevant. After pore-forming, corruptionErosion solution can soak by micropore the general-purpose PH test paper of work metal sheet bottom. See through general-purpose PH test paperBeneath clear glass frame, detects online, monitors in real time via colored CCD Video Image Collecting System BasedThe color that general-purpose PH test paper is wetting and wetting areas scope judge into hole size, according to action time,Rationally be arranged to the monitoring threshold value that hole size is corresponding, immediately siphon away remaining etchant solution, reach accurateControl the object of micropore size.
The present invention has realized the controllability of pore forming process; Fully combining mechanical coining processing and corrosion addsThe advantage of work, efficient, controllability is high, precision is high, applicable to the large aspect ratio list of large thickness materialSide micropore is shaped and processes; Can effectively control sheet metal bottom forming hole size to be processed, effectively eliminate simpleThe impact of mechanical stress while relying on coining processing pore-forming on the distortion of machined material exemplar, has ensured superThe quality that micropore is shaped.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, allAny amendment of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should compriseWithin protection scope of the present invention.

Claims (2)

1. the large aspect ratio micropore complex machining device based on the pre-bath effect of impression, is characterized in that,Comprise sheet metal to be processed, for the diamond penetrator of coining sheet metal to be processed, be equipped with to be processedThe precision of the corresponding etchant solution of sheet metal is dripped and is inhaled solution device, and described sheet metal to be processed is positioned overIn bright glass frame, between described sheet metal to be processed and clear glass frame, be also provided with general-purpose PH examinationPaper, described clear glass frame lower is provided with the colored CCD video figure corresponding with general-purpose PH test paperPicture acquisition system.
2. the large aspect ratio micropore combined machining method based on the pre-bath effect of impression, is characterized in that,Comprise:
(1) coining preform: for the sheet metal to be processed of specific thicknesses, adopt diamond penetrator pairSheet metal ad-hoc location to be processed carries out the vertical coining of certain depth; In sheet metal to be processed bottom phaseLeave certain residual thickness for its bottom surface, form the pre-molten bath of impression;
(2) place exemplar: the sheet metal to be processed after coining is placed in clear glass frame,Accompany general-purpose PH test paper between the two;
(3) splash into etchant solution: select the etchant solution corresponding with sheet metal to be processed, adopt essenceClose suction solution device splashes into this etchant solution of specified quantitative in the pre-molten bath of impression central authorities;
(4) on-line monitoring: calculate reflecting time according to etching characteristic, by being arranged at clear glass machineChange color, the dyeing profit of the colored CCD Video Image Collecting System Based identification general-purpose PH test paper of frame bottomThe degree of expansion of wetted surface; According to corrosiveness characteristic, judge monitor signal parameters and metal to be processedNumerical relation between sheet bottom forming hole size, arranges pilot signal threshold value;
(5) siphon away etchant solution: according to specific sheet metal bottom forming hole size to be processed and pore-forming matterAmount, in conjunction with monitoring threshold value, blots etchant solution in advance, and the micropore of realizing sheet metal to be processed bottom becomesShape processing.
CN201610019583.1A 2016-01-09 2016-01-09 Big aspect ratio micropore complex machining device and method based on the pre- bath effect of impression Active CN105583292B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106216539A (en) * 2016-06-30 2016-12-14 长春理工大学 Diamond Cone indenter two-way nanoimprint necking down hole manufacturing process and instrument thereof
CN110434191A (en) * 2019-09-09 2019-11-12 长春理工大学 A kind of two-way coining pore-forming circular cone pressure head centering detection and bearing calibration

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795353A1 (en) * 1999-06-23 2000-12-29 Vivier Harry J P Method of forming mini-holes in metal plates involves making tool with points to form holes in sheet metal
CN101519016A (en) * 2008-02-25 2009-09-02 联想(北京)有限公司 Method for making patterns on metal surfaces
CN103297565A (en) * 2012-02-24 2013-09-11 比亚迪股份有限公司 Mobile phone shell and preparation method thereof
CN104502464A (en) * 2014-12-01 2015-04-08 长春理工大学 Method for nanometer coining forming and pressing penetration pore forming of metal sheet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795353A1 (en) * 1999-06-23 2000-12-29 Vivier Harry J P Method of forming mini-holes in metal plates involves making tool with points to form holes in sheet metal
CN101519016A (en) * 2008-02-25 2009-09-02 联想(北京)有限公司 Method for making patterns on metal surfaces
CN103297565A (en) * 2012-02-24 2013-09-11 比亚迪股份有限公司 Mobile phone shell and preparation method thereof
CN104502464A (en) * 2014-12-01 2015-04-08 长春理工大学 Method for nanometer coining forming and pressing penetration pore forming of metal sheet

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106216539A (en) * 2016-06-30 2016-12-14 长春理工大学 Diamond Cone indenter two-way nanoimprint necking down hole manufacturing process and instrument thereof
CN106216539B (en) * 2016-06-30 2017-12-19 长春理工大学 The two-way nanoimprint necking down hole manufacturing process of Diamond Cone indenter and its instrument
CN110434191A (en) * 2019-09-09 2019-11-12 长春理工大学 A kind of two-way coining pore-forming circular cone pressure head centering detection and bearing calibration
CN110434191B (en) * 2019-09-09 2020-10-13 长春理工大学 Centering detection and correction method for bidirectional coining pore-forming conical pressure head

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