CN102773677A - Processing technology of down-hole drill bit with powder groove - Google Patents
Processing technology of down-hole drill bit with powder groove Download PDFInfo
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- CN102773677A CN102773677A CN201210266968XA CN201210266968A CN102773677A CN 102773677 A CN102773677 A CN 102773677A CN 201210266968X A CN201210266968X A CN 201210266968XA CN 201210266968 A CN201210266968 A CN 201210266968A CN 102773677 A CN102773677 A CN 102773677A
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- processing technology
- drill bit
- extrusion
- powder groove
- processing
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Abstract
The invention discloses a processing technology of a down-the-hole-drill bit with a powder groove. The processing technology comprises the following steps of: blanking; shot blasting; aquadag coating; heating; warm extrusion and positive extrusion; warm extrusion for upsetting-stress relieving; small-end excircle turning; phosphorization and saponification processing; and cold extrusion for tooth extruding. The processing technology has the advantages that valuable materials are saved, the cost is lowered, the working hours for machining of metals can be reduced, and the production efficiency and the use performance of a product are improved.
Description
Technical field
The present invention relates to a kind of processing technology with powder groove down-the-hold drill bit.
Background technology
Down-the-hold drill bit adopts bar through the mode converted products with the removal material such as numerical control machining center car, brill, mill teeth at present.This kind explained hereafter efficient is low, high material consumption, and the product serviceability is low, and owing to use expensive steel alloy, cost is high simultaneously.
Summary of the invention
Technical problem to be solved by this invention is: a kind of processing technology with powder groove down-the-hold drill bit is provided.
In order to solve the problems of the technologies described above; The technical scheme that the present invention adopts is: the processing technology of band powder groove down-the-hold drill bit comprises the steps: that blanking → ball blast → aquadag coating → heating → warm extrusion just squeezes → the crowded tooth of warm extrusion jumping-up → stress relief annealing → car small end cylindrical → phosphatization saponification processing → cold-extruded.
Advantage of the present invention is: the processing technology of above-mentioned band powder groove down-the-hold drill bit, practiced thrift precious materials, and reduced cost, reduced the metal cutting machining period, improved production efficiency and product serviceability.
The specific embodiment
1, blanking: can select 42CrMo medium carbon alloy steel round bar for use, be applicable to pricker body material, also be suitable for cold-extrusion technology, its performance: intensity, quenching degree height, wearability is good, good toughness, quenching distortion is little, and high creep strength and creep rupture strength are arranged during high temperature.
2, ball blast: throw shot and remove blemish, and obtain the required roughness in surface, make the equadag coating absorption surface.
3, aquadag coating: the blank surface equadag coating is done to lubricate, is prevented the decarburization processing, solves blank surface because the graphite absorption surface is protected die surface, not mold damage when making the warm extrusion pressure.
4, heating: with blank heating to 850 ℃ to 900 ℃.
5, warm extrusion is just crowded: blank heating is come out of the stove and is carried out just crowdedly, extrudes required diameter of tooth portion and length.
6, warm extrusion jumping-up: will just squeeze back blank head jumping-up, and reach required diameter and 6 semicircle sludge grooves.
7, stress relief annealing: forging is placed in the vacuum well type stove, be heated to 660 ℃ ± 10 ℃, be incubated 3 hours and cool to 450 ℃ with the furnace and come out of the stove, remove internal stress, guarantee that road cold-extruded tooth operation is carried out smoothly down.
8, car small end cylindrical: car removes the cylindrical of tooth portion, and to reach the requirement of cold-extruded tooth outer circles, shape and size, toothed surfaces does not have decarburization, and thermal effectiveness is better.
9, the phosphatization saponification is handled: alramenting, saponification lubricated, solve blank surface because the phospholeum film is protected working surface when making cold extrusion, and guarantee that workpiece surface roughness is good, not mold damage.
10, cold-extruded squeezes tooth: under room temperature state, extrude tooth portion profile of tooth; And assurance scale error≤0.1mm; Surface roughness Ra≤1.6 μ m; The precision of milling processing with metal cutting improves, and its metal streamline is radially continuous, and strength of materials performance is better than cut (metal streamline is discontinuous) method.
Claims (1)
1. the processing technology of band powder groove down-the-hold drill bit is characterized in that: comprise the steps: that blanking → ball blast → aquadag coating → heating → warm extrusion just squeezes → the crowded tooth of warm extrusion jumping-up → stress relief annealing → car small end cylindrical → phosphatization saponification processing → cold-extruded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210266968XA CN102773677A (en) | 2012-07-30 | 2012-07-30 | Processing technology of down-hole drill bit with powder groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210266968XA CN102773677A (en) | 2012-07-30 | 2012-07-30 | Processing technology of down-hole drill bit with powder groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102773677A true CN102773677A (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210266968XA Pending CN102773677A (en) | 2012-07-30 | 2012-07-30 | Processing technology of down-hole drill bit with powder groove |
Country Status (1)
| Country | Link |
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| CN (1) | CN102773677A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109333014A (en) * | 2018-11-27 | 2019-02-15 | 汪学军 | A kind of processing technology with powder tank down-the-hold drill bit |
| CN113478189A (en) * | 2021-01-22 | 2021-10-08 | 长沙超金刚机械制造有限公司 | Processing method of reaming bit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE503323C2 (en) * | 1990-12-21 | 1996-05-28 | Sandvik Ab | Drill bit, preferably lower drill bit |
| US7033643B2 (en) * | 2003-06-13 | 2006-04-25 | Osg Corporation | Process of manufacturing a coated body |
| CN201250612Y (en) * | 2008-07-18 | 2009-06-03 | 张永 | Extrusion forming down-hole drill rod |
| CN101518793A (en) * | 2009-03-26 | 2009-09-02 | 陈志波 | Cold extruding and forming process of lower oil cylinder of manual porter |
| CN102128008A (en) * | 2011-03-24 | 2011-07-20 | 中南大学 | Polycrystalline diamond-hard alloy composite rock breaking button down-the-hole bit and manufacturing process thereof |
| CN102284535A (en) * | 2010-06-18 | 2011-12-21 | 上海久丰汽车零件有限公司 | Cold extrusion forming process for input shaft in electric power redirector |
| CN102397964A (en) * | 2010-09-10 | 2012-04-04 | 江苏威鹰机械有限公司 | Energy accumulator shell forging process |
-
2012
- 2012-07-30 CN CN201210266968XA patent/CN102773677A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE503323C2 (en) * | 1990-12-21 | 1996-05-28 | Sandvik Ab | Drill bit, preferably lower drill bit |
| US7033643B2 (en) * | 2003-06-13 | 2006-04-25 | Osg Corporation | Process of manufacturing a coated body |
| CN201250612Y (en) * | 2008-07-18 | 2009-06-03 | 张永 | Extrusion forming down-hole drill rod |
| CN101518793A (en) * | 2009-03-26 | 2009-09-02 | 陈志波 | Cold extruding and forming process of lower oil cylinder of manual porter |
| CN102284535A (en) * | 2010-06-18 | 2011-12-21 | 上海久丰汽车零件有限公司 | Cold extrusion forming process for input shaft in electric power redirector |
| CN102397964A (en) * | 2010-09-10 | 2012-04-04 | 江苏威鹰机械有限公司 | Energy accumulator shell forging process |
| CN102128008A (en) * | 2011-03-24 | 2011-07-20 | 中南大学 | Polycrystalline diamond-hard alloy composite rock breaking button down-the-hole bit and manufacturing process thereof |
Non-Patent Citations (1)
| Title |
|---|
| 贺芒玫: "潜孔钻头锻造方法的改进", 《矿山机械》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109333014A (en) * | 2018-11-27 | 2019-02-15 | 汪学军 | A kind of processing technology with powder tank down-the-hold drill bit |
| CN113478189A (en) * | 2021-01-22 | 2021-10-08 | 长沙超金刚机械制造有限公司 | Processing method of reaming bit |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |