CN108356271A - A kind of titanium knife embryo manufacturing process - Google Patents
A kind of titanium knife embryo manufacturing process Download PDFInfo
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- CN108356271A CN108356271A CN201810096180.6A CN201810096180A CN108356271A CN 108356271 A CN108356271 A CN 108356271A CN 201810096180 A CN201810096180 A CN 201810096180A CN 108356271 A CN108356271 A CN 108356271A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
- B22F2003/185—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers by hot rolling, below sintering temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
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- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Forging (AREA)
Abstract
A kind of titanium knife embryo manufacturing process is first 49 according to mass ratio:1 weighs powder of stainless steel and titanium alloy powder, and weighs high polymer cemented dose according to certain mass ratio；Then the powder of stainless steel weighed, titanium alloy powder and the high polymer cemented dose of mixture formed after mixing are heated to 45~75 DEG C of rolling temperature, and keep the temperature 20~30min；Then the roll of powder rolls is heated to warm-rolling temperature identical with mixture, and it is 0.1~1m/min to adjust mill speed, carries out milled sheet band forming to mixture, the titanium composite plate blanks of high-density large-area are made；Titanium composite plate blanks are finally positioned over progress speed change punching on servo oil pressure clicker press machine, blanking pressure is 5~10KN, and punching speed is 5~10mm/s, and punching obtains titanium knife embryo.Production procedure of the present invention is short, at low cost, by using high polymer cemented dose in stainless steel and titanium alloy powder, can effectively reduce draught pressure, while using speed change punching process, be conducive to obtain the high knife embryo of dimensional accuracy.
Description
Technical field
The present invention relates to powder metallurgy near-net-shape fields, are specifically related to a kind of titanium knife embryo manufacturing process.
Background technology
Currently, the making material of China's conventional tool is typically chosen stainless steel, conventional tool mainly use hot rolling, hot forging,
The problems such as the deformation processing techniques such as punching press produce, and that there is difficulty of processing is big, efficiency is low.In addition, common martensitic stain less steel knife
Tool is not high by heat treatment reinforcement rear knife edge hardness, causes edge of a knife abrasion in cutting process more serious, and high-end cutter is most
Number need to be monopolized from external import, high-end cutter manufacture and finishing technology by external giant, cause manufacturing cost higher.
Sintered metal product density is high, precision is high and stability is good, equipment requirement is relatively low, is very suitable for actual production,
Powder rolling technology has that flow is short, equipment investment is few as a kind of prior powder metallurgy near-net-shape technique, and at low cost is excellent
Gesture, but conventional powder rolling technique there is also some problems, such as resistance of deformation is excessively high when rolling, slab difficult forming easy to crack,
Slab is layered serious etc..
Invention content
Above-mentioned there are problem and shortage it is an object of the invention to be directed to, it is short to provide a kind of technological process, equipment investment at
This low titanium knife embryo manufacturing process.
The technical proposal of the invention is realized in this way：
Titanium knife embryo manufacturing process of the present invention, its main feature is that including the following steps：
Step 1）, according to mass ratio be 49:1 weighs powder of stainless steel and titanium alloy powder, and is weighed according to certain mass ratio
High polymer cemented dose；
Step 2）, by the powder of stainless steel weighed, titanium alloy powder and the high polymer cemented dose of mixture formed after mixing
It is heated to 45~75 DEG C of rolling temperature, and keeps the temperature 20~30min；
Step 3）, the roll of powder rolls is heated to warm-rolling temperature identical with mixture, and adjust mill speed be 0.1~
1m/min carries out milled sheet band forming to mixture, the titanium composite plate blanks of high-density large-area is made；
Step 4）, titanium composite plate blanks are positioned over to progress speed change punching on servo oil pressure clicker press machine, blanking pressure is 5~10KN,
Punching speed is 5~10mm/s, and punching obtains titanium knife embryo.
Wherein, above-mentioned powder of stainless steel is 316L, 316H or 316Ti powder.
Above-mentioned titanium alloy powder is TC1, TC2, TC3 or TC4 powder.
The microscopic appearance of above-mentioned powder of stainless steel and titanium alloy powder is spherical or subsphaeroidal, and grain size is 10~33 μm.
Above-mentioned high polymer cemented dose using in atoleine, glycerine, polyvinyl alcohol, polyethylene glycol, lithium stearate, ethyl alcohol
Two or more are mixed with, and the mass percentage content of each ingredient is：Atoleine 70~85%, glycerine 1~2%,
Polyvinyl alcohol 1 ~ 2%, polyethylene glycol 5 ~ 15%, lithium stearate 1~2%, ethyl alcohol 2~5%.
Above-mentioned high polymer cemented dose of the amount of weighing is the 0.1~1.5% of powder of stainless steel and titanium alloy powder gross mass.
Above-mentioned steps 2）Middle powder of stainless steel, titanium alloy powder and high polymer cemented dose of batch mixing are powder of stainless steel and titanium
Alloy powder batch mixing 20~for 24 hours, add high polymer cemented dose of continuation batch mixing for 24 hours.
Above-mentioned steps 3）In mill speed be 0.6m/min.
Compared with prior art, the present invention haing the following advantages：
1, the present invention in titanium alloy and powder of stainless steel by being added a small amount of high polymer cemented dose, and makes itself and alloy powder
It is sufficiently mixed, then on the basis of original powder rolling, 45 DEG C to 75 DEG C is heated to roll and alloy powder and is rolled
System, compared with conventional powder room temperature rolls, improved technique can substantially reduce rolling in forming process by this method
Pressing pressure reduces equipment energy consumption, improves the lumber recovery of strip；
2, the stainless steel and titanium alloy powder that the present invention uses is spherical or subsphaeroidal particles, therefore mixed-powder has centainly
Mobility can effectively improve powder feeding efficiency in the operation of rolling, to improving production efficiency；
3, present invention employs high polymer cemented dose, the formability of titanium composite plate blanks can favorably be improved；
4, present invention employs servo hydraulic press speed change punching process, can change punching speed in knife embryo blanking process, can
Processing noise is effectively reduced, production is good for the environment, while so that knife embryo forming accuracy is high；
5, the present invention obtains raw slab using powder warm-rolling can directly carry out speed change punching, and overcoming conventional knives embryo, there is still a need for multiple tracks
Manufacturing procedure could become the problem of end article, realize once-forming from powder to product；
6, simple production process of the present invention, it is easy to operate, it is at low cost, by directly being rolled to titanium alloy and stainless steel alloy powder
System, shortens technological process.
Specific implementation mode
Embodiment 1：Titanium powder warm-rolling shapes
It when using of the invention high polymer cemented dose, is calculated by mass percentage, high polymer cemented dose of constituent is：70% liquid
Body paraffin, 2% glycerine, 3% polyvinyl alcohol, 15% polyethylene glycol, 5% lithium stearate, 10% ethyl alcohol.At this point, the quality of the high polymer
Degree is 1.5% relative to titanium alloy powder, is mixed titanium alloy powder with high polymer cemented dose using Y shape meal mixer
For 24 hours, by powder of stainless steel, titanium alloy powder and high polymer cemented dosage form at mixture be put into heater box, be warming up to 75 DEG C,
Heat preservation rolls after 1 hour, obtains titanium alloy life slab, density 7.8g/cm3, after by speed change punching process to slab into
Row punching, blanking pressure are 5~10KN, and punching speed is 5~10mm/s, obtain the titanium knife embryo that relative density is 95%.
Embodiment 2：Titanium alloy warm-rolling shapes
It when using additive of the invention, is calculated by mass percentage, additive composite is：75% atoleine, 2% is sweet
Oil, 3% polyvinyl alcohol, 10% polyethylene glycol, 10% ethyl alcohol.At this point, the mass percentage content of the additive is closed relative to titanium
Bronze end is 1%, is added into titanium alloy powder, and adjusting roller gap is 0mm, mill speed 0.6m/min, by stainless steel
Powder, titanium alloy powder and high polymer cemented dosage form at mixture temperature condition be 75 DEG C at rolled, obtain titanium
Alloy slab density is 7.98g/cm3, after slab is punched by speed change punching process, blanking pressure be 5~10KN, punching
Speed is 5~10mm/s, obtains the titanium knife embryo that relative density is 97%.
Embodiment 3：Titanium knife embryo Blanking Shaping
The embodiment adjusts its mass percentage content relative to titanium alloy using the additive described in above-described embodiment 2
It is 0.3%, using rolling temperature described in above-described embodiment 2 and rolling rate, obtains titanium alloy slab relative density and reach
7.8%.Blanking Shaping further is carried out to gained titanium alloy slab using speed change blanking techniques, use blanking pressure for 5~
10KN, punching speed are that 5~10mm/s is adjustable, preferential that 7mm/s is selected to be punched speed, and noise control is 60 decibels, has been obtained
Whole titanium knife embryo.
Embodiment 4：Titanium knife embryo thermal sintering
The embodiment adjusts its mass percentage content relative to titanium alloy using the additive described in above-described embodiment 2
It is 0.4%, using rolling temperature described in above-described embodiment 2 and rolling rate, obtains titanium alloy slab relative density and reach
7.7%.Blanking Shaping further is carried out to gained titanium alloy slab using speed change blanking techniques, use blanking pressure for 5~
10KN, punching speed are 7mm/s, obtain complete titanium knife embryo.High-vacuum sintering, gained titanium further are carried out to the knife embryo
Knife embryo relative density is up to 96~97%, coefficient of waste 0.36cm3/N.m。
The result obtained by above-described embodiment, it was demonstrated that the titanium knife embryo technological process of production of the present invention is short, lumber recovery
Height, equipment investment is few, and performance is suitable with forging gained titanium knife embryo.
The present invention is described by embodiment, but is not limited the invention, with reference to description of the invention, institute
Other variations of disclosed embodiment, are such as readily apparent that the professional person of this field, such variation should belong to
Within the scope of the claims in the present invention limit.
Claims (8)
1. a kind of titanium knife embryo manufacturing process, it is characterised in that include the following steps：
Step 1）, according to mass ratio be 49:1 weighs powder of stainless steel and titanium alloy powder, and is weighed according to certain mass ratio
High polymer cemented dose；
Step 2）, by the powder of stainless steel weighed, titanium alloy powder and the high polymer cemented dose of mixture formed after mixing
It is heated to 45~75 DEG C of rolling temperature, and keeps the temperature 20~30min；
Step 3）, the roll of powder rolls is heated to warm-rolling temperature identical with mixture, and adjust mill speed be 0.1~
1m/min carries out milled sheet band forming to mixture, the titanium composite plate blanks of high-density large-area is made；
Step 4）, titanium composite plate blanks are positioned over to progress speed change punching on servo oil pressure clicker press machine, blanking pressure is 5~10KN,
Punching speed is 5~10mm/s, and punching obtains titanium knife embryo.
2. titanium knife embryo manufacturing process according to claim 1, it is characterised in that：Above-mentioned powder of stainless steel be 316L,
316H or 316Ti powder.
3. titanium knife embryo manufacturing process according to claim 1, it is characterised in that：Above-mentioned titanium alloy powder be TC1, TC2,
TC3 or TC4 powder.
4. titanium knife embryo manufacturing process according to claim 1, it is characterised in that：Above-mentioned powder of stainless steel and Titanium Powder
The microscopic appearance at end is spherical or subsphaeroidal, and grain size is 10~33 μm.
5. titanium knife embryo manufacturing process according to claim 1, it is characterised in that：Above-mentioned high polymer cemented dose uses liquid
Two or more in paraffin, glycerine, polyvinyl alcohol, polyethylene glycol, lithium stearate, ethyl alcohol are mixed with.
6. titanium knife embryo manufacturing process according to claim 1, it is characterised in that：Above-mentioned high polymer cemented dose of the amount of weighing
It is the 0.1~1.5% of powder of stainless steel and titanium alloy powder gross mass.
7. titanium knife embryo manufacturing process according to claim 1, it is characterised in that：Above-mentioned steps 2）Middle powder of stainless steel,
Titanium alloy powder and high polymer cemented dose of batch mixing are powder of stainless steel and titanium alloy powder batch mixing 20~for 24 hours, are added high poly-
Object binder continues batch mixing for 24 hours.
8. titanium knife embryo manufacturing process according to claim 1, it is characterised in that：Above-mentioned steps 3）In mill speed be
0.6m/min。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711434107 | 2017-12-26 | ||
| CN2017114341077 | 2017-12-26 |
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| CN108356271A true CN108356271A (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810096180.6A Pending CN108356271A (en) | 2017-12-26 | 2018-01-31 | A kind of titanium knife embryo manufacturing process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5891140A (en) * | 1981-10-09 | 1983-05-31 | インペリアル・クレバイト・インコ−ポレイテツド | High tensile metal alloy material and production thereof |
| CN101678458A (en) * | 2007-04-04 | 2010-03-24 | 联邦科学和工业研究组织 | Titanium flat product production |
| CN107138725A (en) * | 2017-06-23 | 2017-09-08 | 太仓优捷特机械有限公司 | The compressing material of high-performance for booster |
-
2018
- 2018-01-31 CN CN201810096180.6A patent/CN108356271A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5891140A (en) * | 1981-10-09 | 1983-05-31 | インペリアル・クレバイト・インコ−ポレイテツド | High tensile metal alloy material and production thereof |
| CN101678458A (en) * | 2007-04-04 | 2010-03-24 | 联邦科学和工业研究组织 | Titanium flat product production |
| CN107138725A (en) * | 2017-06-23 | 2017-09-08 | 太仓优捷特机械有限公司 | The compressing material of high-performance for booster |
Non-Patent Citations (1)
| Title |
|---|
| 徐润泽: "《粉末冶金结构材料学》", 31 January 1999, 中南工业大学出版社 * |
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Application publication date: 20180803 |