CN114131483A - Handheld grinding auxiliary device for outer diameter surface of cylindrical sample for testing metal gas content - Google Patents
Handheld grinding auxiliary device for outer diameter surface of cylindrical sample for testing metal gas content Download PDFInfo
- Publication number
- CN114131483A CN114131483A CN202111438135.2A CN202111438135A CN114131483A CN 114131483 A CN114131483 A CN 114131483A CN 202111438135 A CN202111438135 A CN 202111438135A CN 114131483 A CN114131483 A CN 114131483A
- Authority
- CN
- China
- Prior art keywords
- testing
- base
- outer diameter
- metal gas
- shell
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/32—Polishing; Etching
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
Abstract
The invention discloses a handheld grinding auxiliary device for the outer diameter surface of a cylindrical sample for testing the content of metal gas, and relates to a handheld grinding auxiliary device for the outer diameter surface of a cylindrical sample for testing the content of metal gas. The invention aims to solve the problems that when the surface of a sample is finally ground manually, the sample is too small to be held, the grinding process is very difficult, the hand is easy to hurt, the efficiency is low, and the effect is poor. It is composed of a shell, a base and four guide wheels; the shell is of a major arc cylinder structure, the radial direction of the shell parallel to the chord is provided with an inverted convex through groove, and the steps at two sides are provided with four half shaft holes in equal intervals along the axial direction; the base is in a double-concave shape, the lower end of the base is provided with a half shaft hole matched with the upper half shaft hole of the step, and the two half shaft holes jointly surround a complete shaft hole; the shaft shoulder of the guide wheel is in clearance fit with the complete shaft hole; two opening holes are symmetrically processed on the upper end face of the shell, and a through hole which is the same as the opening hole on the upper end face of the shell is formed in the upper end of the base. The invention is used for testing the content of the metal gas.
Description
Technical Field
The invention relates to a handheld grinding auxiliary device for the outer diameter surface of a cylindrical sample for testing the content of metal gas.
Background
The testing of the gas content of the metal material is carried out by a special oxygen, nitrogen and hydrogen testing instrument, the surface of a sample has high requirements, particularly the surface of the sample with the oxygen content is oxidized or polluted if the sample with the oxygen content is not cared for a little during the outer surface processing, so that the oxygen content is increased by 10-30 ppm, and the surface preparation of the sample is particularly important. With the development of science and technology, the quality requirements on metal materials are higher and higher, and particularly in the aerospace field, the requirements on the content of metal gas are stricter and stricter to improve the service life of products, and some metal gas are required to be less than 5-7 ppm. The specification of a gas content analysis sample is phi 4-5 mm, the length is about 5-6 mm, the surface of the sample is required to be free of oxidation and oil stain, the surface state of the sample which is usually sent to a laboratory is the processed surface by finish turning or linear cutting, the requirement cannot be met, the surface of a sample to be detected needs to be processed, due to the fact that the sampled samples are different, the samples are small, the number of the samples is small and the like, at present, no special sample preparation equipment exists, in order to guarantee the accuracy of testing, the surface of the sample can only be ground and finally processed manually, the sample is difficult to hold due to undersize, the grinding process is very difficult, hands are easy to hurt, the efficiency is low, the effect is poor, the testing result is suddenly high and suddenly low, the error can reach 10-20 ppm sometimes, misjudgment is easy to cause, and the normal working progress is influenced.
Disclosure of Invention
The invention aims to solve the problems that when the surface of a sample is finally ground manually, the sample is too small to be held, the grinding process is very difficult, the hand is easy to hurt, the efficiency is low, and the effect is poor. And provides a handheld grinding auxiliary device for the outer diameter surface of the cylindrical sample for testing the metal gas content.
A handheld grinding auxiliary device for the outer diameter surface of a cylindrical sample for testing the content of metal gas comprises a shell, a base and four guide wheels; the single guide wheel is of a step shaft structure, the diameter of the middle section is 5mm, and the diameters of shaft shoulders at two ends are 3 mm; the shell is of a major arc cylinder structure, an inverted-convex through groove is formed in the radial direction of the shell parallel to the chord, and four half shaft holes are formed in the steps on two sides of the inverted-convex through groove in an axially equal division manner; the base is in a double-concave shape, a half shaft hole matched with the upper half shaft hole of the inverted convex character through groove step is formed in the lower end of the base, and the two half shaft holes are encircled to form a complete shaft hole; the shaft shoulder of the guide wheel is in clearance fit with the complete shaft hole; two opening holes are symmetrically processed on the upper end face of the shell, the upper end of the base is provided with a through hole which is the same as the opening hole on the upper end face of the shell, and the opening of each opening hole is smaller than the diameter of the cylindrical sample; the two sides of the shell and the base are fixed through screws.
The invention has the beneficial effects that:
the size of the device is suitable for being held by hand, the problem that the sample is difficult to hold by hand is solved, the outer surface of the sample is finely ground and polished on the metallographic sample grinding and polishing machine by reasonably selecting the granularity of grinding materials, the rotating speed of a grinding disc, the pressing pressure of the hand and the like, the efficiency is greatly improved, the test result is accurate and stable, and the remarkable effect is achieved.
Drawings
FIG. 1 is a schematic structural diagram of a handheld grinding assisting device for an outer diameter surface of a cylindrical sample for testing metal gas content;
FIG. 2 is a schematic view showing the assembly of a hand-held grinding aid for the outer diameter surface of a cylindrical test piece for testing the content of metal gas;
FIG. 3 is a schematic view of the installation of a cylindrical test specimen;
FIG. 4 is a schematic illustration of grinding on a metallographic grinder; wherein 6 is a grinding and polishing disk.
Detailed Description
The first embodiment is as follows: the handheld grinding auxiliary device for the outer diameter surface of the cylindrical sample for testing the metal gas content comprises a shell 1, a base 2 and four guide wheels 3; the single guide wheel 3 is of a step shaft structure, the diameter of the middle section is 5mm, and the diameters of shaft shoulders at two ends are 3 mm; the shell 1 is of a major arc cylinder structure, an inverted-convex through groove is formed in the radial direction, parallel to a chord, of the shell 1, and four half shaft holes are formed in the steps on two sides of the inverted-convex through groove in an axially equal-dividing mode; the base 2 is in a double-concave shape, a half shaft hole matched with the upper half shaft hole of the inverted convex through groove step is formed in the lower end of the base 2, and the two half shaft holes jointly form a complete shaft hole; the shaft shoulder of the guide wheel 3 is in clearance fit with the complete shaft hole; two opening holes are symmetrically processed on the upper end face of the shell 1, the upper end of the base 2 is provided with a through hole which is the same as the opening hole on the upper end face of the shell 1, and the opening of the opening hole is smaller than the diameter of the cylindrical sample 5; the two sides of the shell 1 and the base 2 are fixed through screws 4.
This embodiment passes through auxiliary device and conveniently holds, makes things convenient for manual operation, can also grind on the metallography machine of throwing that grinds, realizes mechanical grinding, improves sample grinding efficiency and testing result's rate of accuracy greatly.
The embodiment utilizes the two guide wheels to limit the radial and unidirectional axial displacement of the sample, so that the sample is ground while rotating, the overall grinding of the outer diameter surface of the sample is completed, and the oxidation and pollution on the surface of the sample are removed.
This embodiment can grind 2 cylindrical samples simultaneously.
In the embodiment, the fixing threaded holes are formed in the end faces of the shell and the base and used for integral connection. Because certain abrasion is generated between the shaft shoulder of the guide wheel and the shaft hole and between the guide wheel and the sample during grinding, and proper water cooling is needed, the device adopts stainless materials, the surface hardness after heat treatment is more than 60HRC, and the service life of the device can be prolonged.
When the device is assembled, 4 guide wheels can be arranged on the half shaft hole of the base (or the shell), then the shell (or the base) is buckled, and screws are fastened to complete the assembly.
When the device is used, a sample is loaded into the two guide wheels and the base from one side of the device with the sample hole, the two end faces of the device are held by the right-hand thumb and the middle finger, the index finger is placed on the arc surface, and the sample protruding out of the bottom of the device is stably pressed on the polishing disc for grinding. During grinding, the grinding direction is taken care of, so that the test sample is prevented from falling out of the mounting hole. The efficiency is greatly improved by recommending fine grinding and polishing in a metallographic grinding and polishing machine, watering and cooling are taken care during grinding, fine grinding is not necessary, and direct polishing can be carried out if the surface roughness of the sample is good enough.
The embodiment is an auxiliary tool for sample hand-held final grinding, which is used for finish machining of samples, so that the sample has higher requirements, the diameter size is consistent with the design requirement of a tool, the surface quality meets the requirement of certain roughness, the consumption size of fine grinding and polishing is as small as possible, and the grinding of two end faces of the sample is completed firstly before the device is used.
The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the diameter of the shell 1 is 28mm, the chord height is 19.5mm, and the thickness is 16.5 mm. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: the width of the base 2 is the same as the length of the guide wheel 3. The other is the same as in the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment mode and one of the first to third embodiment modes is: the width of the inner side of the base 2 is the same as the width of the bottom of the inverted-convex through groove. The others are the same as in one of the first to third embodiments.
The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: the inside width of base 2 is 10.5 mm. The other is the same as one of the first to fourth embodiments.
The sixth specific implementation mode: the difference between this embodiment and one of the first to fifth embodiments is: the outer side of the base 2 is attached to the inner side of the upper end of the shell 1. The other is the same as one of the first to fifth embodiments.
The seventh embodiment: the difference between this embodiment and one of the first to sixth embodiments is: the diameter of the cylindrical sample 5 is 4mm or 5mm, and the length is less than 10 mm. The other is the same as one of the first to sixth embodiments.
The specific implementation mode is eight: the present embodiment differs from one of the first to seventh embodiments in that: the diameter of the complete shaft hole is 3 mm. The other is the same as one of the first to seventh embodiments.
The specific implementation method nine: the present embodiment differs from the first to eighth embodiments in that: the height of the cylindrical sample 5 protruding out of the upper end face of the shell 1 after assembly is not less than 0.5 mm. The rest is the same as the first to eighth embodiments.
The arrangement ensures that the test sample can be in contact grinding with the grinding and polishing disk during grinding.
The effects of the present invention were verified by the following tests:
the first embodiment is as follows: a handheld grinding auxiliary device for the outer diameter surface of a cylindrical sample for testing the content of metal gas comprises a shell 1, a base 2 and four guide wheels 3; the single guide wheel is of a step shaft structure, the diameter of the middle section is 5mm, and the diameters of shaft shoulders at two ends are 3 mm; the shell 1 is of a major arc cylinder structure, an inverted-convex through groove is formed in the radial direction, parallel to a chord, of the shell 1, and four half shaft holes are formed in the steps on two sides of the inverted-convex through groove in an axially equal-dividing mode; the base 2 is in a double-concave shape, a half shaft hole matched with the upper half shaft hole of the inverted convex through groove step is formed in the lower end of the base 2, and the two half shaft holes jointly form a complete shaft hole; the shaft shoulder of the guide wheel 3 is in clearance fit with the complete shaft hole; two opening holes are symmetrically processed on the upper end face of the shell 1, the upper end of the base 2 is provided with a through hole which is the same as the opening hole on the upper end face of the shell 1, and the opening of the opening hole is smaller than the diameter of the cylindrical sample 5; the two sides of the shell 1 and the base 2 are fixed through screws 4.
Claims (9)
1. A handheld grinding auxiliary device for the outer diameter surface of a cylindrical sample for testing the content of metal gas is characterized in that the handheld grinding auxiliary device for the outer diameter surface of the cylindrical sample for testing the content of metal gas consists of a shell (1), a base (2) and four guide wheels (3); the single guide wheel (3) is of a step shaft structure, the diameter of the middle section is 5mm, and the diameters of shaft shoulders at two ends are 3 mm; the casing (1) is of a major arc cylinder structure, inverted-convex through grooves are formed in the radial direction, parallel to the chord, of the casing (1), and four half shaft holes are formed in the steps on the two sides of each inverted-convex through groove in an axially equal division mode; the base (2) is in a double-concave shape, the lower end of the base (2) is provided with a half shaft hole matched with the upper half shaft hole of the inverted-convex-shaped through groove step, and the two half shaft holes jointly surround to form a complete shaft hole; the shaft shoulder of the guide wheel (3) is in clearance fit with the complete shaft hole; two opening holes are symmetrically processed on the upper end face of the shell (1), the upper end of the base (2) is provided with a through hole which is the same as the opening hole on the upper end face of the shell (1), and the opening of the opening hole is smaller than the diameter of the cylindrical sample (5); the two sides of the shell (1) and the base (2) are fixed through screws (4).
2. The device for assisting in the handheld grinding of the outer diameter surface of the cylindrical test sample for testing the metal gas content according to claim 1, wherein the shell (1) has a diameter of 28mm, a chord height of 19.5mm and a thickness of 16.5 mm.
3. The device for assisting in handheld grinding of the outer diameter surface of the cylindrical sample for metal gas content testing according to claim 1, wherein the base (2) has a width equal to the length of the guide wheel (3).
4. The handheld grinding auxiliary device for the outer diameter surface of the cylindrical sample for testing the metal gas content is characterized in that the width of the inner side of the base (2) is the same as the width of the bottom of the inverted-convex through groove.
5. The device for assisting in the handheld grinding of the outer diameter surface of the cylindrical test piece for testing the metal gas content according to claim 1, wherein the width of the inner side of the base (2) is 10.5 mm.
6. The device for assisting in the handheld grinding of the outer diameter surface of the cylindrical sample for testing the metal gas content according to claim 1, wherein the outer side of the base (2) is attached to the inner side of the upper end of the housing (1).
7. The device for assisting in the handheld grinding of the outer diameter surface of the cylindrical sample for testing the metal gas content according to claim 1, wherein the cylindrical sample (5) has a diameter of 4mm or 5mm and a length of less than 10 mm.
8. The device for assisting in the handheld grinding of the outer diameter surface of a cylindrical sample for testing the metal gas content according to claim 1, wherein the diameter of the complete shaft hole is 3 mm.
9. The device for manually grinding the outer diameter surface of the cylindrical sample for testing the metal gas content according to claim 1, wherein the height of the cylindrical sample (5) protruding out of the upper end surface of the housing (1) after assembly is not less than 0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111438135.2A CN114131483A (en) | 2021-11-29 | 2021-11-29 | Handheld grinding auxiliary device for outer diameter surface of cylindrical sample for testing metal gas content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111438135.2A CN114131483A (en) | 2021-11-29 | 2021-11-29 | Handheld grinding auxiliary device for outer diameter surface of cylindrical sample for testing metal gas content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114131483A true CN114131483A (en) | 2022-03-04 |
Family
ID=80389576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111438135.2A Pending CN114131483A (en) | 2021-11-29 | 2021-11-29 | Handheld grinding auxiliary device for outer diameter surface of cylindrical sample for testing metal gas content |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114131483A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010253593A (en) * | 2009-04-23 | 2010-11-11 | Institute Of Physical & Chemical Research | Recessed spherical surface grinding device and method |
| CN103302559A (en) * | 2013-06-19 | 2013-09-18 | 贵州航天精工制造有限公司 | Ultra-long stepped shaft processing method and auxiliary device by using centerless grinding machine |
| JP5354631B1 (en) * | 2012-08-20 | 2013-11-27 | 学校法人立命館 | Rolling body manufacturing method and polishing apparatus |
| CN204228497U (en) * | 2014-11-28 | 2015-03-25 | 西安科技大学 | A kind of fixed clamp device being applicable to the multiple metallographic specimen of manual grinding and polishing |
| CN105290965A (en) * | 2015-11-25 | 2016-02-03 | 华北电力科学研究院有限责任公司 | Metallographic specimen grinding and polishing clamping device and kit thereof |
| JP2016117144A (en) * | 2014-12-24 | 2016-06-30 | 国立研究開発法人物質・材料研究機構 | Sample holder, polishing jig and polishing device using these as well as polishing method and mounting method of rod-shaped abrasive sample |
| CN105904336A (en) * | 2016-06-29 | 2016-08-31 | 东北大学 | Metallographic phase grinding sample pressure adjusting device and metallographic phase grinding and polishing device and method |
| CN205852525U (en) * | 2016-08-05 | 2017-01-04 | 浙江辛子精工机械股份有限公司 | A kind of bikini steel ball grinding and polishing clamper |
| CN108857617A (en) * | 2018-06-07 | 2018-11-23 | 中车戚墅堰机车车辆工艺研究所有限公司 | Batch for small diameter cylinders sample grinds tooling automatically |
| CN210819066U (en) * | 2019-11-11 | 2020-06-23 | 南京东成机械刀具有限公司 | Roller surface grinding clamp |
| CN211639262U (en) * | 2020-01-13 | 2020-10-09 | 重庆麦尔达机械有限公司 | Centerless grinding machine for machining shaft parts |
| CN112222967A (en) * | 2020-10-19 | 2021-01-15 | 江西森通新材料科技有限公司 | Silicon ingot tumbling mill equipment |
| CN212858911U (en) * | 2020-08-06 | 2021-04-02 | 四川大学 | Square sample clamping device of metallography burnishing machine |
| CN213673209U (en) * | 2020-12-01 | 2021-07-13 | 株洲科杰新材料有限公司 | High-quality centerless grinding device for tungsten alloy roller |
| CN213795902U (en) * | 2020-12-04 | 2021-07-27 | 清华大学深圳国际研究生院 | Metallographic specimen clamp for manual grinding and polishing machine |
-
2021
- 2021-11-29 CN CN202111438135.2A patent/CN114131483A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010253593A (en) * | 2009-04-23 | 2010-11-11 | Institute Of Physical & Chemical Research | Recessed spherical surface grinding device and method |
| JP5354631B1 (en) * | 2012-08-20 | 2013-11-27 | 学校法人立命館 | Rolling body manufacturing method and polishing apparatus |
| CN103302559A (en) * | 2013-06-19 | 2013-09-18 | 贵州航天精工制造有限公司 | Ultra-long stepped shaft processing method and auxiliary device by using centerless grinding machine |
| CN204228497U (en) * | 2014-11-28 | 2015-03-25 | 西安科技大学 | A kind of fixed clamp device being applicable to the multiple metallographic specimen of manual grinding and polishing |
| JP2016117144A (en) * | 2014-12-24 | 2016-06-30 | 国立研究開発法人物質・材料研究機構 | Sample holder, polishing jig and polishing device using these as well as polishing method and mounting method of rod-shaped abrasive sample |
| CN105290965A (en) * | 2015-11-25 | 2016-02-03 | 华北电力科学研究院有限责任公司 | Metallographic specimen grinding and polishing clamping device and kit thereof |
| CN105904336A (en) * | 2016-06-29 | 2016-08-31 | 东北大学 | Metallographic phase grinding sample pressure adjusting device and metallographic phase grinding and polishing device and method |
| CN205852525U (en) * | 2016-08-05 | 2017-01-04 | 浙江辛子精工机械股份有限公司 | A kind of bikini steel ball grinding and polishing clamper |
| CN108857617A (en) * | 2018-06-07 | 2018-11-23 | 中车戚墅堰机车车辆工艺研究所有限公司 | Batch for small diameter cylinders sample grinds tooling automatically |
| CN210819066U (en) * | 2019-11-11 | 2020-06-23 | 南京东成机械刀具有限公司 | Roller surface grinding clamp |
| CN211639262U (en) * | 2020-01-13 | 2020-10-09 | 重庆麦尔达机械有限公司 | Centerless grinding machine for machining shaft parts |
| CN212858911U (en) * | 2020-08-06 | 2021-04-02 | 四川大学 | Square sample clamping device of metallography burnishing machine |
| CN112222967A (en) * | 2020-10-19 | 2021-01-15 | 江西森通新材料科技有限公司 | Silicon ingot tumbling mill equipment |
| CN213673209U (en) * | 2020-12-01 | 2021-07-13 | 株洲科杰新材料有限公司 | High-quality centerless grinding device for tungsten alloy roller |
| CN213795902U (en) * | 2020-12-04 | 2021-07-27 | 清华大学深圳国际研究生院 | Metallographic specimen clamp for manual grinding and polishing machine |
Non-Patent Citations (1)
| Title |
|---|
| 林冉;舒林森;: "金相试件自动磨抛机结构设计及分析", 现代制造工程, no. 08 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114131483A (en) | Handheld grinding auxiliary device for outer diameter surface of cylindrical sample for testing metal gas content | |
| CN103522168A (en) | Cylindrical part outer circle machining device based on holder eccentric rotary swing type double-plane grinding | |
| Hung et al. | Optimum dressing parameters for maximum material removal rate when internal cylindrical grinding using Taguchi method | |
| CN202145195U (en) | Direct reading spectrum analysis system of small-cross section metal specimen | |
| US4369603A (en) | Method of positioning and rotating workpiece and arrangement implementing same | |
| CN105415119A (en) | Spring end surface grinding device facilitating precision machining | |
| CN201561717U (en) | Special testing equipment for axial relative size of step shaft | |
| CN207798521U (en) | A kind of hand-held grind away sleeve measuring small thicknesses of metal plank chemical composition | |
| US3116632A (en) | Apparatus and method of grading grinding wheels in rotation | |
| CN209470656U (en) | A kind of axial workpiece coaxality measuring mechanism | |
| US3019639A (en) | Surface indicators | |
| WO1995020465A1 (en) | Surface grinding | |
| CN112730135B (en) | Device for right-angle free cutting experiment of material | |
| CHEN et al. | Surface Formation Mechanism and Surface Roughness Theoretical Model of Fluorophlogopite | |
| YIN et al. | Experimental Research on Ultrasonic Assisted Internal Grinding of 40Cr15Mo2VN Bearing Rings# br | |
| CN202763628U (en) | Cambered surface grinder | |
| CN217424210U (en) | Concave spherical surface diameter detection device | |
| CN212470965U (en) | Numerical control grinding equipment | |
| CN102126182B (en) | Spindle for diamond roller | |
| CN100569450C (en) | A kind of method for quickly adjusting radius of curvature of abrasive wheel grinding wheel arc dresser | |
| CN208645081U (en) | A kind of simple emery wheel dressing device | |
| SHU et al. | Mechanism of Chemo-mechanical Polishing Process for Silicon Nitride Balls | |
| Othman et al. | Development of Cutting Force Measurement Instrument for Turning Tool Post Using Arduino UNO | |
| Kovyzhenko | The Use of Diamond Belt Polishing to Increase the Life of a Hardmetal Drawing Tool | |
| CN206523364U (en) | A kind of contact fatigue sample fixing device |
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 |