CN104384887A - Reamer manufacturing method for prolonging service life of reamer - Google Patents
Reamer manufacturing method for prolonging service life of reamer Download PDFInfo
- Publication number
- CN104384887A CN104384887A CN201410480856.3A CN201410480856A CN104384887A CN 104384887 A CN104384887 A CN 104384887A CN 201410480856 A CN201410480856 A CN 201410480856A CN 104384887 A CN104384887 A CN 104384887A
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- CN
- China
- Prior art keywords
- reamer
- blank
- rough forging
- temperature
- service life
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000005242 forging Methods 0.000 claims abstract description 36
- 238000000137 annealing Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000010791 quenching Methods 0.000 claims abstract description 14
- 238000005255 carburizing Methods 0.000 claims abstract description 12
- 230000000171 quenching effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000005261 decarburization Methods 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 3
- 239000002893 slag Substances 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract 1
- 238000010606 normalization Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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
- B23P15/46—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools reaming tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a reamer manufacturing method for prolonging the service life of a reamer, and belongs to the technical field of tool processing. The method comprises the following processing steps: (1) preparing reamer materials; (2) forging a blank; (3) annealing the forged blank; (4) carburizing the forged blank; (5) implementing heat treatment on the carburized forged blank; (6) implementing high temperature normalization on the forged blank; (7) implementing primary processing on the forged blank; (8) implementing heat treatment; (9) deeply processing the reamer. By applying the method, the problem that the over high content of impurities in a salt bath, the poor deoxidation and the halfway slag dredging, of a blank for existing reamer manufacturing cause blank quenching decarburization, so that the service life of the manufactured reamer is shortened greatly is solved; the method has the advantages of being simple, low in cost and easy for processing.
Description
Technical field
The invention belongs to tooling cost field, more particularly, relate to a kind of reamer manufacture method improving reamer service life.
Background technology
fraising is one of the method for fine finishing in hole, is widely used aborning.And as the reamer reamed, because its allowance is little, the number of teeth is many, and machining accuracy and surface quality are all higher, is usually used in semifinishing and the fine finishining of middle aperture.But usually in the manufacture process of its manufacture blank, because foreign body too high levels in salt bath, deoxidation are bad, drag for slag and thoroughly do not cause blank to quench decarburization, obtained reamer is reduced service life greatly.
Summary of the invention
For existing reamer manufacture blank because foreign body too high levels in salt bath, deoxidation are bad, drag for slag and thoroughly do not cause blank to quench decarburization, make the problem that obtained reamer reduces service life greatly, the invention provides a kind of reamer manufacture method improving reamer service life, it is by changing the blank component of reamer, and the problem of decarburization of quenching is eliminated by annealing and the way of carburizing, blank is improved, and obtained reamer is improved service life.
For solving the problem, the present invention adopts following technical scheme.
Improve the reamer manufacture method in reamer service life, comprise the following steps:
(1) preparation of reamer material:
The mass percent of reamer blank component is: C:0.65-0.84%, Mn :≤0.60%, Si :≤0.45%, S :≤0.15%, P :≤0.045%, and surplus is Fe;
(2) forging of blank:
Blank is placed in Medium Frequency Induction Heating Furnace and is heated to initial forging temperature, then the blank of heating is put into milling train and utilize rolling mold to roll into reamer blank;
(3) annealing of rough forging:
Anneal to the rough forging obtained through step (2), its annealing temperature is 500-530 DEG C, and annealing time is 7-8 hour, and it is cold to carry out stove after annealing, is cooled to 220-250 DEG C of laggard line space cold;
(4) carburizing of rough forging:
The rough forging obtained through step (3) is put into carburizing medium, is heated to 900-940 DEG C, insulation 8-10 hour;
(5) heat treatment after rough forging carburizing:
After being come out of the stove by the rough forging obtained through step (4), air cooling is to 800-840 DEG C, quenches, and hardening heat is 950-970 DEG C, then at 200-220 DEG C of temperature, carries out lonneal;
(6) high temperature normalizing of rough forging:
Carry out high temperature normalizing to the rough forging obtained through step (5), its normalizing temperature is 840-860 DEG C, and the normalizing time is 3-4 hour, and after normalizing, carry out stove cold, is cooled to 350-370 DEG C of laggard sector-style cold;
(7) preliminary working of rough forging:
Lathe carries out the preliminary working of reamer;
(8) heat treatment:
Through the reamer of step (7) preliminary working, will be heated to 790-810 DEG C in 25 minutes, be incubated after 35 minutes and quench, oil quenching, then carries out lonneal at 160-190 DEG C of temperature;
(9) deep processing of reamer:
First remove superficial oxidation layer, and carry out fine finishining on grinding machine.
Preferably, in described step (1), the mass percent of reamer blank component is: C:0.75%, Mn :≤0.60%, Si :≤0.45%, S :≤0.15%, P :≤0.045%, and surplus is Fe.
Preferably, in described step (5), rough forging come out of the stove after air cooling to 820 DEG C, quench, hardening heat is 960 DEG C, then at 210 DEG C of temperature, carries out lonneal.
Compared to prior art, beneficial effect of the present invention is:
(1) the present invention is by changing the blank component of reamer, and eliminates the problem of decarburization of quenching by the way of annealing and carburizing, and blank is improved, and obtained reamer is improved service life, and then has saved cost, improves production efficiency.
(2) the inventive method is simple, and cost is low, handling ease.
Detailed description of the invention
Describe the present invention below in conjunction with embodiment.
embodiment 1
Improve the reamer manufacture method in reamer service life, comprise the following steps:
(1) preparation of reamer material:
The mass percent of reamer blank component is: C:0.75%, Mn :≤0.60%, Si :≤0.45%, S :≤0.15%, P :≤0.045%, and surplus is Fe.
(2) forging of blank:
Blank is placed in Medium Frequency Induction Heating Furnace and is heated to initial forging temperature, then the blank of heating is put into milling train and utilize rolling mold to roll into reamer blank;
(3) annealing of rough forging:
Anneal to the rough forging obtained through step (2), its annealing temperature is 520 DEG C, and annealing time is 7 hours, and it is cold to carry out stove after annealing, is cooled to 230 DEG C of laggard line spaces cold;
(4) carburizing of rough forging:
The rough forging obtained through step (3) is put into carburizing medium, is heated to 930 DEG C, be incubated 9 hours;
(5) heat treatment after rough forging carburizing:
Air cooling to 820 DEG C after the rough forging obtained through step (4) is come out of the stove, quench, hardening heat is 960 DEG C, then at 210 DEG C of temperature, carries out lonneal;
(6) high temperature normalizing of rough forging:
Carry out high temperature normalizing to the rough forging obtained through step (5), its normalizing temperature is 850 DEG C, and the normalizing time is 3 hours, and after normalizing, carry out stove cold, is cooled to 360 DEG C of laggard sector-styles cold;
(7) preliminary working of rough forging:
Lathe carries out the preliminary working of reamer;
(8) heat treatment:
Through the reamer of step (7) preliminary working, will be heated to 800 DEG C in 25 minutes, be incubated after 35 minutes and quench, oil quenching, then carries out lonneal at 180 DEG C of temperature;
(9) deep processing of reamer:
First remove superficial oxidation layer, and carry out fine finishining on grinding machine.
Claims (3)
1. improve the reamer manufacture method in reamer service life, it is characterized in that following steps:
(1) preparation of reamer material:
The mass percent of reamer blank component is: C:0.65-0.84%, Mn :≤0.60%, Si :≤0.45%, S :≤0.15%, P :≤0.045%, and surplus is Fe;
(2) forging of blank:
Blank is placed in Medium Frequency Induction Heating Furnace and is heated to initial forging temperature, then the blank of heating is put into milling train and utilize rolling mold to roll into reamer blank;
(3) annealing of rough forging:
Anneal to the rough forging obtained through step (2), its annealing temperature is 500-530 DEG C, and annealing time is 7-8 hour, and it is cold to carry out stove after annealing, is cooled to 220-250 DEG C of laggard line space cold;
(4) carburizing of rough forging:
The rough forging obtained through step (3) is put into carburizing medium, is heated to 900-940 DEG C, insulation 8-10 hour;
(5) heat treatment after rough forging carburizing:
After being come out of the stove by the rough forging obtained through step (4), air cooling is to 800-840 DEG C, quenches, and hardening heat is 950-970 DEG C, then at 200-220 DEG C of temperature, carries out lonneal;
(6) high temperature normalizing of rough forging:
Carry out high temperature normalizing to the rough forging obtained through step (5), its normalizing temperature is 840-860 DEG C, and the normalizing time is 3-4 hour, and after normalizing, carry out stove cold, is cooled to 350-370 DEG C of laggard sector-style cold;
(7) preliminary working of rough forging:
Lathe carries out the preliminary working of reamer;
(8) heat treatment:
Through the reamer of step (7) preliminary working, will be heated to 790-810 DEG C in 25 minutes, be incubated after 35 minutes and quench, oil quenching, then carries out lonneal at 160-190 DEG C of temperature;
(9) deep processing of reamer:
First remove superficial oxidation layer, and carry out fine finishining on grinding machine.
2. a kind of reamer manufacture method improving reamer service life according to claim 1, it is characterized in that, in described step (1), the mass percent of reamer blank component is: C:0.75%, Mn :≤0.60%, Si :≤0.45%, S :≤0.15%, P :≤0.045%, and surplus is Fe.
3. a kind of reamer manufacture method improving reamer service life according to claim 1, is characterized in that, in described step (5), rough forging come out of the stove after air cooling to 820 DEG C, quench, hardening heat is 960 DEG C, then at 210 DEG C of temperature, carries out lonneal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480856.3A CN104384887A (en) | 2014-09-19 | 2014-09-19 | Reamer manufacturing method for prolonging service life of reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410480856.3A CN104384887A (en) | 2014-09-19 | 2014-09-19 | Reamer manufacturing method for prolonging service life of reamer |
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| Publication Number | Publication Date |
|---|---|
| CN104384887A true CN104384887A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410480856.3A Pending CN104384887A (en) | 2014-09-19 | 2014-09-19 | Reamer manufacturing method for prolonging service life of reamer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118122A (en) * | 2017-12-01 | 2018-06-05 | 信秀塔克机械（苏州）有限公司 | A kind of technique for improving deep hole tools production and processing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19919965A1 (en) * | 1998-05-01 | 1999-11-04 | Dana Corp | Method for producing hardened gearwheels with improved fatigue characteristics |
| CN1539026A (en) * | 2001-12-25 | 2004-10-20 | ���Ű�����ʽ���� | Carburized and quenched member and method for production thereof |
| CN101177765A (en) * | 2006-11-10 | 2008-05-14 | 宝山钢铁股份有限公司 | Disk shearing blade and method for manufacturing the same |
| CN101638791A (en) * | 2009-08-27 | 2010-02-03 | 山东鸿亦机械有限公司 | Heat treatment process for driving and driven bevel gear of drive axle |
| CN102010973A (en) * | 2010-07-05 | 2011-04-13 | 南车戚墅堰机车有限公司 | Simple method for deformation control during carburizing and quenching of large-diameter heavy-duty gears |
| CN103451381A (en) * | 2013-08-15 | 2013-12-18 | 成都市新筑路桥机械股份有限公司 | Thermal treatment process for low alloy structural steel and low carbon structural steel |
-
2014
- 2014-09-19 CN CN201410480856.3A patent/CN104384887A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19919965A1 (en) * | 1998-05-01 | 1999-11-04 | Dana Corp | Method for producing hardened gearwheels with improved fatigue characteristics |
| CN1539026A (en) * | 2001-12-25 | 2004-10-20 | ���Ű�����ʽ���� | Carburized and quenched member and method for production thereof |
| CN101177765A (en) * | 2006-11-10 | 2008-05-14 | 宝山钢铁股份有限公司 | Disk shearing blade and method for manufacturing the same |
| CN101638791A (en) * | 2009-08-27 | 2010-02-03 | 山东鸿亦机械有限公司 | Heat treatment process for driving and driven bevel gear of drive axle |
| CN102010973A (en) * | 2010-07-05 | 2011-04-13 | 南车戚墅堰机车有限公司 | Simple method for deformation control during carburizing and quenching of large-diameter heavy-duty gears |
| CN103451381A (en) * | 2013-08-15 | 2013-12-18 | 成都市新筑路桥机械股份有限公司 | Thermal treatment process for low alloy structural steel and low carbon structural steel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118122A (en) * | 2017-12-01 | 2018-06-05 | 信秀塔克机械（苏州）有限公司 | A kind of technique for improving deep hole tools production and processing |
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| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHU HENGFENG SCIENCE + TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: MAANSHAN BANGSIKE AUTOMATION TECHNOLOGY CO., LTD. Effective date: 20150723 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150723 Address after: 241000 Anhui city of Wuhu province Jiujiang District Bay Industrial Park Applicant after: Wuhu Hengfeng Technology Co.,Ltd. Address before: 243000 Anhui city of Ma'anshan province at high Huo North Avenue No. 1669 Building 2 sparkle Applicant before: MAANSHAN BANGSI AUTOMATION TECHNOLOGY CO., LTD. |
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| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150304 |