CN115401409A - Organic glass transmission assembly shell and machining method - Google Patents
Organic glass transmission assembly shell and machining method Download PDFInfo
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- CN115401409A CN115401409A CN202210979931.5A CN202210979931A CN115401409A CN 115401409 A CN115401409 A CN 115401409A CN 202210979931 A CN202210979931 A CN 202210979931A CN 115401409 A CN115401409 A CN 115401409A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention provides an organic glass transmission assembly shell and a machining method, and belongs to the technical field of numerical control machining. The problem of the influence that shell surface vibration line, transmittance are not enough and the dark chamber fillet remains and produce transmission assembly rack lubrication test effect and data that the organic glass system shell numerical control processing method caused is solved. It comprises the following steps: step 1: determining parameters of the end mill and manufacturing the end mill and the lengthened shockproof end mill; step 2: fixing the organic glass square stock on a numerical control milling machine; and step 3: transmitting the processing program to a numerical control milling machine; and 4, step 4: roughly processing an organic glass square stock to obtain an organic glass shell; and 5: performing semi-finishing on the organic glass shell; step 6: performing finish machining on the organic glass shell; and 7: and (5) performing surface polishing on the organic glass shell after finish machining. The method is mainly used for processing the organic glass shell.
Description
Technical Field
The invention belongs to the technical field of numerical control machining, and particularly relates to an organic glass transmission assembly shell and a machining method.
Background
The transmission assembly is one of the core assemblies of a passenger vehicle, and the performance of the transmission assembly directly influences the stability and fuel property of the whole vehicle. The lubricating oil spraying test is an important component of a transmission assembly bench test and is used for observing and evaluating the lubricating performance of a transmission assembly so as to achieve the aim of verifying a design target, the rigidity of an organic glass shell is different from that of a metal material, when a thin-wall region is machined, a large-pressure cutting fluid can make the surface of the shell vibrate, so that in the cutting process of a cutter, the thin-wall region can generate over-cutting and under-cutting phenomena, jolting marks are left on the surface of the shell to influence the surface quality and transparency, when the lubricating process is observed by the organic glass shell adopted in the traditional lubricating test, the jolting marks are machined on the surface of the transparent shell, the deep cavity fillet is large in residue, the roughness of the machined surface is large, the transparency of the shell is insufficient, the observation is insufficient, the internal space changes, and the problems of errors and the like of experimental data are caused.
Disclosure of Invention
In view of the above, the present invention is directed to an organic glass transmission assembly housing and a processing method thereof, so as to solve the problems of the numerical control processing method of the organic glass housing that the vibration lines and the insufficient transmittance of the housing surface and the deep cavity fillet residue affect the transmission assembly bench lubrication test effect and data.
In order to achieve the purpose, the invention adopts the following technical scheme: a processing method of an organic glass transmission assembly shell comprises the following steps:
step 1: determining parameters of an end mill and manufacturing the end mill and a lengthened shockproof end mill, wherein the end mill comprises a single-edge end mill, a ball-end mill and a fillet mill, and the lengthened shockproof end mill comprises a lengthened single-edge end mill, a lengthened ball-end mill and a lengthened fillet mill;
and 2, step: fixing the organic glass square stock on a numerical control milling machine;
and step 3: transmitting the processing program to a numerical control milling machine;
and 4, step 4: roughly machining an organic glass square material by using a single-edge end mill and a lengthened shockproof end mill to obtain an organic glass shell, and cooling a machined part in the rough machining process;
and 5: performing semi-finishing on the organic glass shell, and performing cooling treatment on a processed part in the semi-finishing process;
step 6: performing finish machining on the organic glass shell, and performing lubrication and cooling treatment on a machining part by adopting a drip irrigation type cooling and lubricating process in the finish machining process;
and 7: and (5) carrying out surface polishing on the organic glass shell after finish machining.
Furthermore, in the step 1, a cutting edge mirror grinding process is adopted for manufacturing the single-edge end mill, and a five-axis knife grinder is used for grinding the single-edge end mill until the spiral angle, the spiral groove and the radial rake angle of the single-edge end mill meet set parameters.
Furthermore, the rough machining in the step 4 is rough machining of the organic glass square stock by using a single-edge end mill, and rough machining of the deep cavity of the organic glass square stock by using a lengthened single-edge end mill.
Furthermore, the semi-finishing in the step 5 is to finish the curved surface of the organic glass shell by using a ball-end milling cutter, and finish the curved surface of the deep cavity of the organic glass shell by using a lengthened ball-end milling cutter.
Furthermore, the finish machining in the step 6 is to perform semi-finish machining on the curved surface of the organic glass shell by using a fillet milling cutter, and perform semi-finish machining on the curved surface of the deep cavity of the organic glass shell by using an lengthened fillet milling cutter.
Furthermore, the cooling treatment in the step 4 and the cooling treatment in the step 5 are both carried out by using a low-concentration emulsion and an air cooling method in an intermittent manner, wherein the emulsion content of the low-concentration emulsion is 6-8%.
Further, the pressure of air cooling in the step 4 and the step 5 is 0.7MPa.
Furthermore, a burette is arranged on one side of the fillet milling cutter, a pump is arranged above the burette, and the drip irrigation type cooling and lubricating process is characterized in that high-concentration emulsion is dripped on the processing surface by the pump and the burette, so that a layer of oil film is formed between the processing surface and the cutter point of the fillet milling cutter, and the emulsion content of the high-concentration emulsion is 80-85%.
Further, the step 1 of manufacturing the lengthened shockproof end mill comprises the following steps:
step 1.1: selecting and determining parameters of the end mill and the lengthened cutter bar;
step 1.2: turning the tail of the end mill, chamfering at a step, turning the outer diameter of the lengthened cutter bar, chamfering at one end, turning an inner hole, chamfering at an orifice, and drilling a central hole at the other end;
step 1.3: grinding the tail part of the end mill and the inner hole of the lengthened cutter bar to corresponding matching sizes;
step 1.4: assembling the tail part of the end mill and an inner hole of the lengthened cutter bar, and reserving a chamfer at a joint;
step 1.5: fixing the assembled cutter on a turntable, and continuously welding the chamfer angle at the joint by 360 degrees by using the oxygen welding;
step 1.6: fixing the center hole at the top of the cutter and the center hole of the extension bar, and turning the outer diameter of the extension bar;
step 1.7: grinding the center hole at the top of the cutter and the center hole of the extension bar by using a center hole grinding machine, and grinding the whole outer diameter of the cutter and the outer diameter of the extension bar by using an outer circle grinding machine;
step 1.8: clamping the handle part of the cutter to grind the edge part of the cutter.
The invention also provides an organic glass transmission assembly shell which is manufactured by the processing method.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through setting the helical angle, the helical groove and the radial front angle of the single-edge end mill and adopting the cutting edge mirror grinding process, the cutting surface of the single-edge end mill is smooth and burr-free, the cutting edge is sharper, axial, oblique and radial cutting processing can be realized, the large helical angle can rapidly remove redundant materials, the large chip removal groove can timely remove generated heat, the sharp single-edge tool point can realize better surface quality during processing, and the phenomena of tool sticking, atomization and the like can be effectively prevented;
2. according to the manufacturing process of the lengthened shockproof end mill, the phenomenon that the cutter bar interferes with the side wall is effectively avoided, and the phenomenon that the cutter generates shock lines on the shell due to shock during machining is reduced;
3. the intermittent cooling treatment is carried out by adopting the low-concentration emulsion and the air cooling in the rough machining and semi-finish machining processes of the organic glass shell, so that the heat generated in the cutting processes of the rough machining and the semi-finish machining is effectively solved, the problems that the volume of the organic glass is changed and the structure is deformed due to the heat generated in the cutting process, so that the form and position precision of the shell is reduced are solved, and the problem that the surface quality of the shell is influenced due to the sharp rise of the temperature of the shell is solved;
4. according to the invention, a drip irrigation type cooling and lubricating process is adopted in the finish machining process of the organic glass shell, so that a layer of oil film is formed between the machining surface and the tool nose of the round-corner milling cutter, the organic glass surface is effectively protected, the smoothness and transparency of the surface of the organic glass shell are increased, the using amount of emulsion is effectively saved, and the machining cost is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
FIG. 1 is a schematic flow chart of a processing method of an organic glass transmission assembly shell according to the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely explained below with reference to the drawings in the embodiments of the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments.
Referring to fig. 1 for explaining the embodiment, a method for processing a plastic transmission assembly shell comprises the following steps:
step 1: determining parameters of an end mill and manufacturing the end mill and a lengthened shockproof end mill, wherein the end mill comprises a single-edge end mill, a ball-end mill and a fillet mill, the lengthened shockproof end mill comprises a lengthened single-edge end mill, a lengthened ball-end mill and a lengthened fillet mill, the single-edge end mill is manufactured by adopting a cutting edge mirror grinding process, and a five-axis high-precision knife grinder is used for grinding the single-edge end mill until a spiral angle, a spiral groove and a radial rake angle of the single-edge end mill accord with set parameters, wherein the lengthened shockproof end mill comprises the following steps:
step 1.1: selecting and determining parameters of the end mill and the lengthened cutter bar;
step 1.2: turning the tail of the end mill, chamfering at a step, turning the outer diameter of the lengthened cutter bar, chamfering at one end, turning an inner hole, chamfering at an orifice, and drilling a central hole at the other end;
step 1.3: grinding the tail part of the end mill and the inner hole of the lengthened cutter bar to corresponding matching sizes;
step 1.4: assembling the tail part of the end mill and an inner hole of the lengthened cutter bar, and reserving a chamfer at a joint;
step 1.5: fixing the assembled cutter on a turntable, and continuously welding the chamfer angle at the joint by 360 degrees by using the oxygen welding;
step 1.6: fixing the center hole at the top of the cutter and the center hole of the extension bar, and turning the outer diameter of the extension bar;
step 1.7: grinding the center hole at the top of the cutter and the center hole of the extension bar by using a center hole grinding machine, and grinding the whole outer diameter of the cutter and the outer diameter of the extension bar by using an outer circle grinding machine;
step 1.8: clamping the handle part of the cutter to grind the edge part of the cutter.
Step 2: fixing the organic glass square stock on a numerical control milling machine;
and step 3: transmitting the machining program to a numerical control milling machine, using CAM software to assist programming and transmitting the NC code to the numerical control milling machine;
and 4, step 4: roughly processing an organic glass square material to obtain an organic glass shell, and cooling a processing part in the rough processing process, wherein the rough processing is to roughly process the organic glass square material by using a single-edge end mill and roughly process a deep cavity of the organic glass square material by using a lengthened single-edge end mill;
and 5: performing semi-finishing on the organic glass shell, and performing cooling treatment on a processed part in the semi-finishing process, wherein the semi-finishing process is to finish the curved surface of the organic glass shell by using a ball-end milling cutter, and finish the curved surface of the deep cavity of the organic glass shell by using a lengthened ball-end milling cutter;
step 6: the method comprises the following steps of performing finish machining on an organic glass shell, and performing lubrication and cooling treatment on a machined part by adopting a drip irrigation type cooling and lubricating process in the finish machining process, wherein the finish machining is to perform semi-finish machining on a curved surface on the surface of the organic glass shell by using a fillet milling cutter, and perform semi-finish machining on a curved surface of a deep cavity of the organic glass shell by using a lengthened fillet milling cutter, a dropper is arranged on one side of the fillet milling cutter, a suction pump is arranged above the dropper, and the drip irrigation type cooling and lubricating process is to drip high-concentration emulsion on the machined surface dropwise through the suction pump and the dropper so that an oil film is formed between the machined surface and the nose of the fillet milling cutter;
and 7: and (5) carrying out surface polishing on the organic glass shell after finish machining.
And cooling treatment in the step 4 and the step 5 is carried out by using a low-concentration emulsion and an air cooling method in an intermittent manner.
In this embodiment, use diameter 10mm single-edge end mill as an example in step 1, adopt the whole carbide bar of a 10mm to carry out cutter sharpening fluting manufacturing, this material cutter intensity is higher, the wearability is better, the sharpness is better, adopt blade mirror grinding technology, utilize five high accuracy sharpeners to grind the single-edge end mill, make final cutter overall length grind to 83mm, the sword length 26mm, lock the helicla flute at 27, radial rake angle locks at 19, this end mill can realize the axial, slant and radial cutting process, big helix angle can be got rid of unnecessary material fast, big chip groove can in time get rid of the heat that produces, sharp single-edge point of a knife processing can realize better surface quality, effectively prevent phenomena such as gluing the sword, atomizing from taking place.
In this embodiment, the ball end mill and the radius end mill in step 1 are selected from the existing specifications according to the processing requirements.
In this embodiment, the manufacturing of the lengthened shockproof end mill in step 1 takes a 12mm end mill as an example, and a 12mm end mill and a lengthened cutter bar made of steel with a diameter of about 13mm and a length of about 150mm are selected, which includes the following steps:
step 1.1: selecting and determining parameters of the end mill and the lengthened cutter bar;
step 1.2: turning the tail of the end mill to 8.2mm and the length of the end mill is 10mm, chamfering C2 at a step, turning the outer diameter of the lengthened cutter bar to 12.5mm and the length of the lengthened cutter bar is 150mm, chamfering C2 at one end, turning an inner hole to 7.8mm and the depth of the inner hole is 10.3mm, chamfering C0.3 at an orifice, and drilling a central hole at the other end;
step 1.3: grinding the tail part of the end mill and the inner hole of the lengthened cutter bar, grinding the tail part of the end mill to the size of 8 (+ 0.02,0) mm by an excircle, and grinding the inner hole to the size of 8 (+ 0-0.02) mm;
step 1.4: assembling the tail part of the end mill and an inner hole of the lengthened cutter bar, and reserving a 2mm 90-degree chamfer at the joint;
step 1.5: fixing the assembled cutter on a turntable, and continuously welding the chamfer at the joint by 360 degrees by using the oxygen welding, wherein the welding continuity needs to be ensured;
step 1.6: fixing the center hole at the top of the cutter and the center hole of the extension bar, and turning the outer diameter of the extension bar to 12.2mm;
step 1.7: grinding the center hole at the top of the cutter and the center hole of the extension bar by using a center hole grinding machine, and grinding the whole outer diameter of the cutter and the outer diameter of the extension bar to 12mm +/-0.01 mm by using an external grinding machine;
step 1.8: the handle of the cutter is clamped to grind the edge of the cutter, and the coaxiality of the edge and the handle of the cutter is ensured.
In this embodiment, the method for manufacturing the lengthened shockproof end mill in step 1 is suitable for manufacturing lengthened ball end mills, lengthened single-edge end mills and lengthened fillet mills.
Step 2 fixes the organic glass square stock on the numerical control milling machine in this embodiment, carries out the fixed preparation work of material.
In the embodiment, step 3 uses CAM software to assist programming and transmits NC codes to a numerically controlled milling machine to prepare equipment for programming.
Step 4 carries out the rough machining to the organic glass square stock and obtains the organic glass casing in this embodiment to carry out cooling treatment to the processing department in the rough machining process, the rough machining carries out the rough machining for using single-edge end mill to the organic glass square stock, uses extension single-edge end mill to carry out the rough machining to the deep chamber of organic glass square stock.
Step 5 carries out the semi-finishing to the organic glass casing in this embodiment to cooling treatment is carried out to the department of processing at the semi-finishing in-process, the semi-finishing is for using ball-end milling cutter to carry out the finish machining to the curved surface on organic glass casing surface, uses extension ball-end milling cutter to carry out the finish machining to the curved surface in the organic glass casing deep cavity.
In the embodiment, the cooling treatment in the step 4 and the cooling treatment in the step 5 are both performed intermittently by using a low-concentration emulsion and an air cooling method, the heat generated in the cutting process of rough machining and semi-finish machining is effectively solved by using the low-concentration emulsion and the air cooling method, the problem that the volume of organic glass is changed by the heat generated in the cutting process, the structure is deformed, and the form and position precision of the shell is reduced is solved, and the problem that the surface quality of the shell is affected due to the sharp rise of the temperature of the shell is solved at the same time, the air cooling pressure is 0.7MPa, the emulsion content of the low-concentration emulsion is 6-8%, a large amount of surrounding cuttings are removed in time by using air cooling with the high pressure of 0.7MPa, and the cuttings can take away about 80% of heat by using a handheld thermometer for statistics.
The low concentration emulsion described in this example has an emulsion content of 6% to 8%.
In this embodiment, a dropper is arranged on one side of the fillet milling cutter in the step 6, a pump is arranged above the dropper, the drip irrigation type cooling and lubricating process is to drip high-concentration emulsion on the processing surface through the pump and the dropper, so that a layer of oil film can be formed between the processing surface and the tool point of the fillet milling cutter, the key point of the fine processing of the surface of the organic glass shell is the control of the surface quality, the allowance of the fine processing is controlled within 0.15mm, and the fine processing process only adopts a cooling mode of cooling the high-concentration emulsion. The content of the emulsion of the high-concentration emulsion is 80-85%, a drip irrigation type cooling and lubricating process is adopted for lubricating and cooling treatment, the cutting allowance is very small, and a layer of oil film can be formed between the processing surface and the tool nose by using a trace amount of the high-concentration emulsion, so that the protection effect on the surface of organic glass is realized, the surface smoothness and transparency can be increased, the using amount of the emulsion is effectively saved, and the processing cost is saved.
The organic glass transmission assembly shell has the advantages of less surface processing shock lines, less residual at the fillet of the deep cavity, small processed surface roughness and good shell transmittance compared with the existing organic glass shell.
The embodiments of the invention disclosed above are intended merely to aid in the explanation of the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention.
Claims (10)
1. A processing method of an organic glass transmission assembly shell is characterized by comprising the following steps: it comprises the following steps:
step 1: determining parameters of an end mill and manufacturing the end mill and a lengthened shockproof end mill, wherein the end mill comprises a single-edge end mill, a ball-end mill and a fillet mill, and the lengthened shockproof end mill comprises a lengthened single-edge end mill, a lengthened ball-end mill and a lengthened fillet mill;
step 2: fixing the organic glass square stock on a numerical control milling machine;
and step 3: transmitting the processing program to a numerical control milling machine;
and 4, step 4: roughly processing an organic glass square material by using a single-edge end mill and a lengthened single-edge end mill to obtain an organic glass shell, and cooling a processing part in the rough processing process;
and 5: performing semi-finishing on the organic glass shell by using a ball-end milling cutter and a lengthened ball-end milling cutter, and cooling the machined part in the semi-finishing process;
step 6: performing finish machining on the organic glass shell by using a fillet milling cutter and a lengthened fillet milling cutter, and performing lubrication and cooling treatment on a machined part by adopting a drip irrigation type cooling and lubricating process in the finish machining process;
and 7: and (5) carrying out surface polishing on the organic glass shell after finish machining.
2. The method for processing the organic glass transmission assembly shell according to claim 1, wherein the method comprises the following steps: and (3) manufacturing the single-edge end mill in the step (1) by adopting a cutting edge mirror grinding process, and grinding the single-edge end mill by using a five-axis knife grinder until the spiral angle, the spiral groove and the radial rake angle of the single-edge end mill meet set parameters.
3. The method for processing the organic glass transmission assembly shell according to claim 1, wherein the method comprises the following steps: and in the step 4, rough machining is carried out on the organic glass square stock by using a single-edge end mill, and rough machining is carried out on the deep cavity of the organic glass square stock by using a lengthened single-edge end mill.
4. The method for processing the organic glass transmission assembly shell according to claim 1, wherein the method comprises the following steps: and in the step 5, the semi-finishing is to finish the curved surface of the organic glass shell by using a ball-end milling cutter, and finish the curved surface of the deep cavity of the organic glass shell by using a lengthened ball-end milling cutter.
5. The method for processing the organic glass transmission assembly shell according to claim 1, wherein the method comprises the following steps: and in the step 6, the finish machining is to perform semi-finish machining on the curved surface of the organic glass shell by using a fillet milling cutter, and perform semi-finish machining on the curved surface of the deep cavity of the organic glass shell by using an lengthened fillet milling cutter.
6. The method for processing the organic glass transmission assembly shell according to claim 1, wherein the method comprises the following steps: and cooling treatment in the step 4 and the step 5 is carried out intermittently by using a low-concentration emulsion and air cooling, wherein the emulsion content of the low-concentration emulsion is 6-8%.
7. The method for processing the organic glass transmission assembly shell according to claim 6, wherein the method comprises the following steps: the pressure of air cooling in the step 4 and the step 5 is 0.7MPa.
8. The method for processing the organic glass transmission assembly shell according to claim 5, wherein the method comprises the following steps: the drip irrigation type cooling and lubricating process is characterized in that a drip tube is arranged on one side of the round-corner milling cutter, a suction pump is arranged above the drip tube, high-concentration emulsion is dripped on a machining surface through the suction pump and the drip tube, a layer of oil film is formed between the machining surface and the tool nose of the round-corner milling cutter, and the content of the high-concentration emulsion is 80% -85%.
9. The method for processing the organic glass transmission assembly shell according to claim 1, wherein the method comprises the following steps: the manufacturing method of the lengthened shockproof end mill in the step 1 comprises the following steps:
step 1.1: selecting and determining parameters of the end mill and the lengthened cutter bar;
step 1.2: turning the tail of the end mill, chamfering at a step, turning the outer diameter of the lengthened cutter bar, chamfering at one end, turning an inner hole, chamfering at an orifice, and drilling a central hole at the other end;
step 1.3: grinding the tail part of the end mill and the inner hole of the lengthened cutter bar to corresponding matching sizes;
step 1.4: assembling the tail part of the end mill and an inner hole of the lengthened cutter bar, and reserving a chamfer at a joint;
step 1.5: fixing the assembled cutter on a turntable, and continuously welding the chamfer angle at the joint by 360 degrees by using the oxygen welding;
step 1.6: fixing the center hole at the top of the cutter and the center hole of the extension bar, and turning the outer diameter of the extension bar;
step 1.7: grinding the center hole at the top of the cutter and the center hole of the extension bar by using a center hole grinding machine, and grinding the whole outer diameter of the cutter and the outer diameter of the extension bar by using an external grinding machine;
step 1.8: clamping the handle part of the cutter to grind the edge part of the cutter.
10. An organic glass transmission assembly casing which characterized in that: the organic glass transmission assembly shell is manufactured by the processing method of any one of claims 1 to 9.
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| CN202210979931.5A CN115401409A (en) | 2022-08-16 | 2022-08-16 | Organic glass transmission assembly shell and machining method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210979931.5A CN115401409A (en) | 2022-08-16 | 2022-08-16 | Organic glass transmission assembly shell and machining method |
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Citations (5)
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|---|---|---|---|---|
| DE3215407A1 (en) * | 1982-04-24 | 1983-10-27 | Dotzauer, Gernot, 8800 Ansbach | Device for the metered feeding of oil during the milling of workpieces |
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| CN112207302A (en) * | 2020-10-12 | 2021-01-12 | 广东工业大学 | Cutting machining tool and using method thereof |
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2022
- 2022-08-16 CN CN202210979931.5A patent/CN115401409A/en active Pending
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|---|---|---|---|---|
| DE3215407A1 (en) * | 1982-04-24 | 1983-10-27 | Dotzauer, Gernot, 8800 Ansbach | Device for the metered feeding of oil during the milling of workpieces |
| DE4433306A1 (en) * | 1994-09-19 | 1996-03-21 | Mapal Fab Praezision | Method of operating on workpieces in which filings are produced |
| CN105058002A (en) * | 2015-08-05 | 2015-11-18 | 哈尔滨汽轮机厂有限责任公司 | Machining method of welded type lengthened drill bit |
| CN110340626A (en) * | 2018-04-08 | 2019-10-18 | 广东星联精密机械有限公司 | A kind of processing technology of die cavity |
| CN112207302A (en) * | 2020-10-12 | 2021-01-12 | 广东工业大学 | Cutting machining tool and using method thereof |
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| 曹永成等: "《铣工》", 辽宁科学技术出版社, pages: 90 - 93 * |
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