CN102284639A - Precision punching process - Google Patents
Precision punching process Download PDFInfo
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- CN102284639A CN102284639A CN2011102102631A CN201110210263A CN102284639A CN 102284639 A CN102284639 A CN 102284639A CN 2011102102631 A CN2011102102631 A CN 2011102102631A CN 201110210263 A CN201110210263 A CN 201110210263A CN 102284639 A CN102284639 A CN 102284639A
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- oil
- machine oil
- die
- precision stamping
- precision punching
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Abstract
The invention discloses a precision punching process. Before a workpiece is subjected to precision punching, the precision stamping process also comprises the following pretreatment steps of: a, brushing absolute alcohol on the inner cavity of a die; and b, after the absolute alcohol on the die is volatilized completely, brushing precision punching oil on the inner cavity of the die, wherein the precision punching oil is formed by mixing machine oil and an extreme pressure additive; the adding amount of the extreme pressure additive is 0.25 to 10 percent of the volume of the machine oil. By the precision punching process, the temperature is not very high after the die works for a long time; the service life of the die is prolonged; and the processing cost of the workpiece is reduced.
Description
Technical field
The invention belongs to field of machining, relate in particular to precision stamping technology.
Background technology
In field of machining, especially in the punching course, usually pressing equipment and stamped workpieces are used lubricating oil, thereby play lubricated, heat radiation, function such as wear-resistant and antirust.In common punching course, the temperature of workpiece and pressing equipment raises few, uses general mineral oil can satisfy as punching oil; And thick steel disc and stainless steel substrates etc. are carried out high speed and precision stamping adds man-hour, effect such as because caloric value is big, it is fast that temperature raises, and therefore need play heat radiation with precision stamping oil, lubricated and wear-resistant.But use the thermal diffusivity of punching oil good not enough in the present precision stamping technology, mould is when converted products, and caloric value is very big, greatly reduces the life-span of mould; Simultaneously commercially available precision stamping oil price lattice costliness has improved the processing cost of workpiece.
Summary of the invention
Goal of the invention: the present invention is directed to the deficiencies in the prior art, the precision stamping technology that a kind of heat radiation lubricating anti-wear effect is good, processing cost is low is provided.
Technical scheme: for achieving the above object, the present invention by the following technical solutions: before workpiece is carried out precision stamping, before workpiece is carried out precision stamping, also comprise following pre-treatment step:
A. with the absolute alcohol brushing on dies cavity;
B. after treating that absolute alcohol volatilizees totally on the described mould, essence is dashed the oil brushing on described dies cavity.
Wherein said essence is dashed oil and is mixed by machine oil and EP agent; The addition of described EP agent is 0.25 ~ 10% of a machine oil volume.
Before workpiece is carried out precision stamping, with absolute alcohol brushing cavity body of mould, thereby the volatilization by alcohol reduces the temperature of mould, and further the essence of brushing autogamy is dashed oil on the dies cavity after the cooling, thereby plays boundary lubrication, radiating and cooling, extreme-pressure anti-wear and function such as antirust.Therefore make mould work long hours the back temperature can be too not high, prolonged the life-span of mould, and the stability of workpiece processing might as well; Simultaneously the essence of absolute alcohol and autogamy is dashed oil and commercially available essence towards the oil phase ratio, and price is much lower, thereby has reduced the processing cost of workpiece.
Further, described machine oil is selected for use No. 20 or No. 30 machine oil; Because the viscosity of SAE5W20 machine oil is little, has the good low-temperature flowability, therefore mould is played better lubrication and heat sinking function.
In addition, in machine oil, add the extreme-pressure anti-wear ability that an amount of EP agent can improve machine oil.Among the present invention smart in the oil addition of EP agent be 0.25 ~ 10%(volume ratio of machine oil), be preferably 0.5 ~ 2%(volume ratio by test), can make the EP agent use amount less, can keep suitable extreme-pressure anti-wear effect again.
Beneficial effect: compared with prior art, the present invention has the following advantages: 1, before the smart punching press to workpiece, by absolute alcohol mould is lowered the temperature, the smart pre-treatment step of dashing oil of employing has simultaneously prolonged the service life of mould and the stability of workpiece processing; 2, simultaneously absolute alcohol and smart oil and the commercially available essence of dashing are towards the oil phase ratio, and price is much lower, thereby has reduced the processing cost of workpiece.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1
As shown in Figure 1, earlier with the absolute alcohol brushing on the dies cavity of high temperature, take away mold heat during the alcohol volatilization, reduce the temperature of mould, after treating that all alcohol volatilizations are clean,, put into workpiece then and carry out punching press at the smart oil that dashes of dies cavity brushing, can take out workpiece behind to be punched the finishing, repeat above-mentioned steps then.It is in the SAE5W20 of 200L machine oil that described essence is dashed oil, behind the EP agent (the clear board of Weihai, Shandong cloud) of adding 1L, both are mixed gets final product.Under this precision stamping technology, mold temperature remains at below 50 ℃, and die wear is little; Commercially available in addition essence needs about 4000 yuan towards oily every 100L, if process 0.05 square metre workpiece, the cost that required essence is dashed oil is about 0.2 yuan; And the alcohol cost is 0.02 yuan among the present invention, and smart be 0.03 yuan towards oily cost, adds up to 0.05 yuan, thus have only prior art cost 1/4.
Embodiment 2 ~ 4
The processing step of embodiment 2 ~ 4 is identical with embodiment 1, has only smart prescription difference of dashing oil, specifically fills a prescription as table 1.
The smart prescription that dashes oil among table 1 embodiment 2 ~ 4
| ? | The machine oil label | Machine oil addition (L) | EP agent addition (L) |
| Embodiment 2 | SAE5W20 | 200 | 0.5 |
| Embodiment 3 | SAE10W20 | 200 | 4 |
| Embodiment 4 | SAE10W30 | 200 | 20 |
Claims (4)
1. precision stamping technology is characterized in that: before workpiece is carried out precision stamping, also comprise following pre-treatment step:
A. with the absolute alcohol brushing on dies cavity;
B. after treating that absolute alcohol volatilizees totally on the described mould, essence is dashed the oil brushing on described dies cavity;
Wherein said essence is dashed oil and is mixed by machine oil and EP agent; The addition of described EP agent is 0.25 ~ 10% of a machine oil volume.
2. precision stamping technology according to claim 1 is characterized in that: described machine oil is No. 20 or No. 30 machine oil.
3. precision stamping technology according to claim 1 and 2 is characterized in that: described machine oil is SAE5W20 machine oil.
4. precision stamping technology according to claim 3 is characterized in that: described autogamy essence addition of EP agent in the oil is 0.5 ~ 2% of a machine oil volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102102631A CN102284639A (en) | 2011-07-26 | 2011-07-26 | Precision punching process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102102631A CN102284639A (en) | 2011-07-26 | 2011-07-26 | Precision punching process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102284639A true CN102284639A (en) | 2011-12-21 |
Family
ID=45331542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102102631A Pending CN102284639A (en) | 2011-07-26 | 2011-07-26 | Precision punching process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102284639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878549A (en) * | 2014-03-18 | 2014-06-25 | 安庆索伊特机车部件有限公司 | Press forming technology of housing of filer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2673190B2 (en) * | 1989-06-14 | 1997-11-05 | フジオーゼックス株式会社 | Lubricant supply device for molding press |
| CN2907951Y (en) * | 2005-07-29 | 2007-06-06 | 中国科学院金属研究所 | Warm shaping mould special for magnesium alloy mobile phone shell |
| CN201366467Y (en) * | 2009-02-24 | 2009-12-23 | 四川省宜宾普什模具有限公司 | High-speed precise punching die with cooling function |
-
2011
- 2011-07-26 CN CN2011102102631A patent/CN102284639A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2673190B2 (en) * | 1989-06-14 | 1997-11-05 | フジオーゼックス株式会社 | Lubricant supply device for molding press |
| CN2907951Y (en) * | 2005-07-29 | 2007-06-06 | 中国科学院金属研究所 | Warm shaping mould special for magnesium alloy mobile phone shell |
| CN201366467Y (en) * | 2009-02-24 | 2009-12-23 | 四川省宜宾普什模具有限公司 | High-speed precise punching die with cooling function |
Non-Patent Citations (2)
| Title |
|---|
| 张广林等: "《冲压加工润滑技术》", 29 February 1996, article "润滑油的带入机理", pages: 36 * |
| 黄伟九等: "板料精冲润滑剂的研究", 《润滑与密封》, no. 1, 31 January 2004 (2004-01-31), pages 22 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878549A (en) * | 2014-03-18 | 2014-06-25 | 安庆索伊特机车部件有限公司 | Press forming technology of housing of filer |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20111221 |