CN104128780A - Turning tool machining technology for improving product quality - Google Patents
Turning tool machining technology for improving product quality Download PDFInfo
- Publication number
- CN104128780A CN104128780A CN201410365779.7A CN201410365779A CN104128780A CN 104128780 A CN104128780 A CN 104128780A CN 201410365779 A CN201410365779 A CN 201410365779A CN 104128780 A CN104128780 A CN 104128780A
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- CN
- China
- Prior art keywords
- blank
- product quality
- sequence
- lathe tool
- heat treatment
- 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
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Classifications
-
- 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
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/30—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools lathes or like tools
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Turning (AREA)
Abstract
The invention discloses a turning tool machining technology for improving product quality. The turning tool machining technology comprises the processes of blank blanking, forging, cutting, heat treatment and grinding in sequence. A blank is W2MoCr4V2Co8 high-speed tool steel. The heat treatment process includes preheating, heating and heat insulation, quenching and tempering in sequence. Preheating is conducted in a staged mode with the temperature gradually increased. Quenching is oil cooling, an annealing step is further set between the forging step and the cutting step, and according to the annealing step, the forged blank is heated step by step. The turning tool machining technology is simple in circuit, the hardness number of an obtained turning tool can be more than 70 HRC, and the good wear resistance and the good heat hardness are achieved.
Description
Technical field
The present invention relates to for lathe tools process for machining and manufacturing field, particularly relate to a kind of lathe tool processing technology that is beneficial to product quality.
Background technology
In mechanical processing industry, lathe is considered to the work " machine tool " of all devices.Lathe is mainly used in machining shaft, dish, cover and other have the workpiece of rotary surface, take cylinder as main, be in machine-building and repair factory, to use a widest class lathe, lathe tool for turning processing, there is the cutter of a cutting tip.Lathe tool is one of cutter most widely used in machining.
Development along with Modern Manufacturing Technology, high-speed steel bit is widely used in machining, in use procedure, the cutting tip of lathe tool will bear very large pressure, friction, impacts and be operated at higher temperature, and this makes high-speed steel bit be prone to wearing and tearing, edge bends, lathe tool to rotate strong and impacted the situation that breach etc. is unfavorable for crudy.How further to optimize the lathe tool processing technology that is beneficial to product quality of the prior art is further to improve the key point of lathe tool quality.
Summary of the invention
For above-mentioned high-speed steel bit, being prone to wearing and tearing, edge bends, lathe tool rotated strong and impacted the situation that breach etc. is unfavorable for crudy.How further to optimize the lathe tool processing technology that is beneficial to product quality of the prior art is further to improve the problem of the key point of lathe tool quality, the invention provides a kind of lathe tool processing technology that is beneficial to product quality.
For the problems referred to above, the lathe tool processing technology that is beneficial to product quality provided by the invention reaches goal of the invention by following technical essential: the lathe tool processing technology that is beneficial to product quality, comprise blank blanking in sequence, forge, machining, heat treatment and grinding, described blank is W2MoCr4V2Co8 high-speed tool steel, described heat treatment comprises preheating in sequence, heating and thermal insulation, quench and tempering, described quenching is oil cooling, between described forging and machining, also comprise annealing steps, the blank step heating of described annealing steps for forging is obtained: being heated to 600-650 ℃ of insulation from normal temperature is no less than 10min, continue to be heated to 850-860 ℃ of insulation and be no less than Slow cooling after 20min, more than the programming rate of heating is not more than 25 ℃/h.
Further technical scheme is:
Between described machining and heat treatment, also comprise cleaning step, described cleaning step comprises deoil in sequence matting and baking operation.
Described quenching and tempering also comprise oil removing matting in sequence, drying process and inspection operation.
Described Slow cooling is the cold or oil cooling of stove, and cooling velocity is not more than 30 ℃/h.
The present invention has following beneficial effect:
This process route is simple, and the annealing steps of setting is intended to soften the hardness of the blank obtaining after forging, to improve its machining property, is convenient to follow-up machining.The restriction of annealing steps distribution heating, heating-up temperature and temperature retention time, is intended to reduce the decarburized amount of the degree that adds thermal deformation, cracking of blank blank in heat treatment process and possibility, material, guarantees the quality of the follow-up lathe tool obtaining; Simultaneously by the annealing in process of above technique, can make blank hardness number after annealing below 260HBW; Simultaneously, because the annealing temperature providing is higher, compared to prior art, consuming time when obtaining equal annealing effect is only 2/3rds of prior art, and the annealing steps that above distribution is carried out also helps the production efficiency of lathe tool.More than the lathe tool hardness number that this process route obtains can reach 70HRC, and there is good wearability and thermohardening.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples.
Embodiment 1:
Be beneficial to the lathe tool processing technology of product quality, comprise blank blanking in sequence, forge, machining, heat treatment and grinding, described blank is W2MoCr4V2Co8 high-speed tool steel, described heat treatment comprises preheating in sequence, heating and thermal insulation, quench and tempering, described quenching is oil cooling, between described forging and machining, also comprise annealing steps, the blank step heating of described annealing steps for forging is obtained: being heated to 600-650 ℃ of insulation from normal temperature is no less than 10min, continue to be heated to 850-860 ℃ of insulation and be no less than Slow cooling after 20min, more than the programming rate of heating is not more than 25 ℃/h.
Lathe tool heating process operation provided by the invention is simple, and the annealing steps of setting is intended to soften the hardness of the blank obtaining after forging, to improve its machining property, is convenient to follow-up machining.The restriction of annealing steps distribution heating, heating-up temperature and temperature retention time, is intended to reduce the decarburized amount of the degree that adds thermal deformation, cracking of blank blank in heat treatment process and possibility, material, guarantees the quality of the follow-up lathe tool obtaining; Simultaneously by the annealing in process of above technique, can make blank hardness number after annealing below 260HBW; Simultaneously, because the annealing temperature providing is higher, compared to prior art, consuming time when obtaining equal annealing effect is only 2/3rds of prior art, and the annealing steps that above distribution is carried out also helps the production efficiency of lathe tool.More than the lathe tool hardness number that this process route obtains can reach 70HRC, and there is good wearability and thermohardening.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, for the oil stain that prevents from being infected with on blank in mechanical processing process impacts heat treatment, affect the final quality of product, between described machining and heat treatment, also comprise cleaning step, described cleaning step comprises deoil in sequence matting and baking operation.
Further described quenching and tempering also comprise oil removing matting in sequence, drying process and inspection operation.The inspection operation arranging is for checking the quenching quality of blank, as the crackle of outward appearance and thermal deformation, uniform quenching degree are observed, to avoid the blank that does not meet quality requirement to enter next step processing and waste operation resource.
Oxidized and prevent that too fast hardness number and the internal stress that affects blank of cooling velocity, described Slow cooling from being the cold or oil cooling of stove in cooling procedure for preventing blank, and cooling velocity is not more than 30 ℃/h.
Above content is the further description of the present invention being done in conjunction with concrete preferred embodiment, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments that draw under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (4)
1. be beneficial to the lathe tool processing technology of product quality, comprise blank blanking in sequence, forge, machining, heat treatment and grinding, it is characterized in that, described blank is W2MoCr4V2Co8 high-speed tool steel, described heat treatment comprises preheating in sequence, heating and thermal insulation, quench and tempering, described quenching is oil cooling, between described forging and machining, also comprise annealing steps, the blank step heating of described annealing steps for forging is obtained: being heated to 600-650 ℃ of insulation from normal temperature is no less than 10min, continue to be heated to 850-860 ℃ of insulation and be no less than Slow cooling after 20min, more than the programming rate of heating is not more than 25 ℃/h.
2. the lathe tool processing technology that is beneficial to product quality according to claim 1, is characterized in that, also comprises cleaning step between described machining and heat treatment, and described cleaning step comprises deoil in sequence matting and baking operation.
3. the lathe tool processing technology that is beneficial to product quality according to claim 1, is characterized in that, described quenching and tempering also comprise oil removing matting in sequence, drying process and inspection operation.
4. the lathe tool processing technology that is beneficial to product quality according to claim 1, is characterized in that, described Slow cooling is the cold or oil cooling of stove, and cooling velocity is not more than 30 ℃/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410365779.7A CN104128780A (en) | 2014-07-30 | 2014-07-30 | Turning tool machining technology for improving product quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410365779.7A CN104128780A (en) | 2014-07-30 | 2014-07-30 | Turning tool machining technology for improving product quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104128780A true CN104128780A (en) | 2014-11-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410365779.7A Pending CN104128780A (en) | 2014-07-30 | 2014-07-30 | Turning tool machining technology for improving product quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104128780A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334908A (en) * | 2016-08-19 | 2017-01-18 | 四川中物红宇科技有限公司 | Mechanical long shaft finish machining method and obtained mechanical long shaft |
-
2014
- 2014-07-30 CN CN201410365779.7A patent/CN104128780A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334908A (en) * | 2016-08-19 | 2017-01-18 | 四川中物红宇科技有限公司 | Mechanical long shaft finish machining method and obtained mechanical long shaft |
| CN106334908B (en) * | 2016-08-19 | 2018-09-25 | 四川中物红宇科技有限公司 | A kind of method for fine finishing of machinery long axis and obtained mechanical long axis |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141105 |
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| WD01 | Invention patent application deemed withdrawn after publication |