CN1583660A - Self-lubricating ceramic cutting bits - Google Patents
Self-lubricating ceramic cutting bits Download PDFInfo
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- CN1583660A CN1583660A CN 200410024226 CN200410024226A CN1583660A CN 1583660 A CN1583660 A CN 1583660A CN 200410024226 CN200410024226 CN 200410024226 CN 200410024226 A CN200410024226 A CN 200410024226A CN 1583660 A CN1583660 A CN 1583660A
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- Prior art keywords
- self
- tic
- ball milling
- caf
- sintering
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Abstract
A self-lubricating ceramic cutting tool is prepared from Al2O3 TiC and CaF2 as solid lubricant, which forms a continuous lubricant film on cutting surfaces at a wide range of working temperature.
Description
Technical field
The invention belongs to the advanced manufacturing technology field, particularly relate to a kind of self-lubrication ceramic cutter material.
Background technology
Stupalith has characteristics such as hardness height, wear-resistant, high temperature resistant and chemical stability be good.Yet, when ceramic material rubs under no ambient condition, the coefficient of friction height.Thereby, how to reduce frictional coefficient and become its key in application.The self-lubrication ceramic material is solid lubricant to be joined as additive form ceramic composite in the stupalith, forms solid lubricant film at friction surface, thereby realizes self-lubricating function.Al
2O
3/ TiC sintex is to use one of maximum sintex both at home and abroad, is mainly used in and does the various iron and steel of cutting and alloy material thereof.But when doing cutting, owing to lack the lubrication and cooling effect of cutting fluid, the friction between cutter and the workpiece increases, and the cutting temperature height causes that cutter life descends, and machined surface quality worsens.For this reason, be badly in need of seeking a kind of new technology, reduce the coefficient of friction between cutter and the workpiece.English literature " Wear " (1999,225:267～272) has been reported Al
2O
3/ TiC sintex; China's document " Shandong engineering college journal " (1982, (4): 1～16) reported Al
2O
3/ TiC/Mo/Ni sintex, more than these Al
2O
3/ TiC sintex all is to adopt the hot-pressing sintering technique preparation, does not all add kollag in the cutter material, does not have self-lubricating function.China's document " mechanical engineering journal " (2003,39 (8): 106～109) reported Al
2O
3/ TiB
2The self-lubrication ceramic cutter.But Al
2O
3/ TiB
2The self-lubricating function of sintex does not realize that by adding kollag it is to utilize Al
2O
3/ TiB
2The friction chemical reaction that produces under the tool surface cutting high temperature action during sintex high-speed dry cutting generates the reaction film with lubrication at the cutter material surface in situ, thereby realizes the self-lubricating of cutter material itself, therefore, and Al
2O
3/ TiB
2The self-lubrication ceramic cutter only in the time of high-speed dry cutting, just has self-lubricating function.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of ceramic cutting tool material with self-lubricating function is provided.
The present invention realizes in the following manner.
A kind of self-lubrication ceramic cutter material comprises Al
2O
3And TiC, it is characterized in that preparing by the following method:
(1) with Al
2O
3Pottery adds TiC hardening constituent and CaF as matrix material
2Kollag; The mass percent of each component is: Al
2O
342.5～47.5%, TiC 42.5～47.5%, CaF
25.0～15.0%;
The raw material that (2) will weigh up mixes, and strengthens ball milling then, with ethanol as medium, 80～120 hours ball milling time;
(3) material behind the ball milling is placed drying in the vacuum drying chamber, dry rear material sieves in the cupboard of nitrogen protection is arranged;
(4) adopt hot-pressing sintering technique, as sintering atmosphere, sintering range is 1700～1800 ℃ with nitrogen, and pressure is 30～36MPa, and temperature retention time is 8～20 minutes, can prepare Al
2O
3/ TiC/CaF
2The self-lubrication ceramic cutter material.
Al by above-mentioned technology preparation
2O
3/ TiC/CaF
2The self-lubrication ceramic cutter material is with CaF
2Kollag adds Al to
2O
3Form ceramic composite in the/TiC ceramic cutting tool material, utilize the low characteristics of kollag coefficient of friction, make sintex when machining, form continuous solid lubrication layer at tool surface, form the reaction film with lubrication at tool surface, thereby realize the self-lubricating function of cutter itself.Because solid lubricant is contained in cutter material inside, cutter has self-lubricating function all the time in its whole life, and cutter material can be in very wide temperature range (at a high speed and slow cutting) all have the self-lubricating ability, the frictional coefficient between cutter rake face and the smear metal significantly reduces.Can overcome environmental pollution that cutting fluid causes, realize cleaning production, reducing cost, can be applicable to the machining of DRY CUTTING and difficult-to-machine material.
Embodiment:
Provide three most preferred embodiments of the present invention below:
Embodiment one: press Al
2O
342.5%, TiC 42.5%, CaF
215.0% mass percent takes by weighing raw material.The raw material that weighed up is mixed, strengthens ball milling then, with ethanol as medium, 100 hours ball milling time.Material behind the ball milling is placed drying in the vacuum drying chamber, and dry rear material sieves in the cupboard of the atmosphere that nitrogen protection is arranged.Adopt hot pressing sintering method to prepare the self-lubrication ceramic cutter material, sintering temperature is 1700 ℃, and pressure is 30MPa, and soaking time is 10min, adopts the nitrogen sintering atmosphere.
Embodiment two: press Al
2O
345.0%, TiC 45.0%, CaF
210.0% mass percent takes by weighing raw material.The raw material that weighed up is mixed, strengthens ball milling then, with ethanol as medium, 100 hours ball milling time.Material behind the ball milling is placed drying in the vacuum drying chamber, and dry rear material sieves in the cupboard of the atmosphere that nitrogen protection is arranged.Adopt hot pressing sintering method to prepare the self-lubrication ceramic cutter material, sintering temperature is 1720 ℃, and pressure is 32MPa, and soaking time is 12min, adopts the nitrogen sintering atmosphere.
Embodiment three: press Al
2O
347.5%, TiC 47.5%, CaF
25.0% mass percent takes by weighing raw material.The raw material that weighed up is mixed, strengthens ball milling then, with ethanol as medium, 100 hours ball milling time.Material behind the ball milling is placed drying in the vacuum drying chamber, and dry rear material sieves in the cupboard of the atmosphere that nitrogen protection is arranged.Adopt hot pressing sintering method to prepare the self-lubrication ceramic cutter material, sintering temperature is 1750 ℃, and pressure is 35MPa, and soaking time is 15min, adopts the nitrogen sintering atmosphere.
Adopt the Al of above-mentioned technology preparation
2O
3/ TiC/CaF
2The self-lubrication ceramic cutter material when doing cutting, has self-lubricating function, and coefficient of friction can reduce to be suitable for the machining of DRY CUTTING and difficult-to-machine material more than 20%.
Claims (1)
1. a self-lubrication ceramic cutter material comprises Al
2O
3And TiC, it is characterized in that preparing by the following method:
(1) with Al
2O
3Pottery adds TiC hardening constituent and CaF as matrix material
2Kollag.Press Al
2O
342.5～47.5%, TiC 42.5～47.5%, CaF
25.0～15.0% mass percent takes by weighing raw material;
The raw material that (2) will weigh up mixes, and strengthens ball milling then, with ethanol as medium, 80～120 hours ball milling time;
(3) material behind the ball milling is placed drying in the vacuum drying chamber, dry rear material sieves in the cupboard of nitrogen protection is arranged;
(4) adopt hot-pressing sintering technique, as sintering atmosphere, sintering range is 1700～1800 ℃ with nitrogen, and pressure is 30～36MPa, and temperature retention time is 8～20 minutes, can prepare Al
2O
3/ TiC/CaF
2The self-lubrication ceramic cutter material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024226 CN1257864C (en) | 2004-06-02 | 2004-06-02 | Self-lubricating ceramic cutting bits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024226 CN1257864C (en) | 2004-06-02 | 2004-06-02 | Self-lubricating ceramic cutting bits |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1583660A true CN1583660A (en) | 2005-02-23 |
| CN1257864C CN1257864C (en) | 2006-05-31 |
Family
ID=34600837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410024226 Expired - Fee Related CN1257864C (en) | 2004-06-02 | 2004-06-02 | Self-lubricating ceramic cutting bits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1257864C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417519C (en) * | 2006-09-29 | 2008-09-10 | 山东大学 | Self-lubricating composite soft coating cutter and manufacture method thereof |
| CN102390980A (en) * | 2011-08-12 | 2012-03-28 | 山东轻工业学院 | Gradient self-lubricating ceramic cutter material and preparation method thereof |
| CN102603308A (en) * | 2012-01-09 | 2012-07-25 | 山东大学 | Process for manufacturing micro-chamber graphite self-lubricating ceramic cutter |
| CN103641457A (en) * | 2013-12-12 | 2014-03-19 | 吴锐 | Composite ceramic material and preparation method thereof |
| CN103641456A (en) * | 2013-12-12 | 2014-03-19 | 刘秀端 | High-strength nano composite ceramic material and preparation method thereof |
| CN103664147A (en) * | 2013-12-12 | 2014-03-26 | 蔡毓敏 | High-strength ceramic material and preparation method thereof |
| CN104045325A (en) * | 2014-06-26 | 2014-09-17 | 齐鲁工业大学 | Preparation method of self-lubricating cutter material added with coated calcium fluoride powder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8771391B2 (en) | 2011-02-22 | 2014-07-08 | Baker Hughes Incorporated | Methods of forming polycrystalline compacts |
-
2004
- 2004-06-02 CN CN 200410024226 patent/CN1257864C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417519C (en) * | 2006-09-29 | 2008-09-10 | 山东大学 | Self-lubricating composite soft coating cutter and manufacture method thereof |
| CN102390980A (en) * | 2011-08-12 | 2012-03-28 | 山东轻工业学院 | Gradient self-lubricating ceramic cutter material and preparation method thereof |
| CN102603308A (en) * | 2012-01-09 | 2012-07-25 | 山东大学 | Process for manufacturing micro-chamber graphite self-lubricating ceramic cutter |
| CN102603308B (en) * | 2012-01-09 | 2013-06-12 | 山东大学 | Process for manufacturing micro-chamber graphite self-lubricating ceramic cutter |
| CN103641457A (en) * | 2013-12-12 | 2014-03-19 | 吴锐 | Composite ceramic material and preparation method thereof |
| CN103641456A (en) * | 2013-12-12 | 2014-03-19 | 刘秀端 | High-strength nano composite ceramic material and preparation method thereof |
| CN103664147A (en) * | 2013-12-12 | 2014-03-26 | 蔡毓敏 | High-strength ceramic material and preparation method thereof |
| CN103641456B (en) * | 2013-12-12 | 2016-03-02 | 陈铭 | A kind of High-strength nano composite ceramic material and preparation method thereof |
| CN104045325A (en) * | 2014-06-26 | 2014-09-17 | 齐鲁工业大学 | Preparation method of self-lubricating cutter material added with coated calcium fluoride powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1257864C (en) | 2006-05-31 |
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