CN105618649A - Forging technique for machining deepened blind hole through impact method - Google Patents
Forging technique for machining deepened blind hole through impact method Download PDFInfo
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- CN105618649A CN105618649A CN201410604086.9A CN201410604086A CN105618649A CN 105618649 A CN105618649 A CN 105618649A CN 201410604086 A CN201410604086 A CN 201410604086A CN 105618649 A CN105618649 A CN 105618649A
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- forging
- blind hole
- deepened
- machining
- drift
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Abstract
The invention relates to a forging technique for machining a deepened blind hole through an impact method and relates to forging production techniques. The forging technique for machining the deepened blind hole through the impact method comprises the steps that an oblique plane inclining by 5-7 degrees is manufactured on a punch, a blank is placed down transversely after the punch is punched to the design depth, the outer circle of a forged piece is slightly pressed by at least one circle through a hammer, and then the punch is disengaged from the forged piece. By the adoption of the forging technique, production is convenient, labor is saved, the forming performance is good, and the utilization rate of a workpiece is increased.
Description
Technical field
The present invention relates to forging production technique, particularly the impact forging production technical field to the deep blind hole of metalwork.
Background technology
Forging is the common technology of metalwork preliminarily forming, processing generally for shallow bore hole, macropore has no problem substantially, but man-hour is added for deep blind hole, after drift pours red heat metallic object, it is flushed to and reaches certain depth, metal temperature can decline, and temperature reduces certainly will cause metal shrinkage, will hold drift after metal shrinkage tightly. Therefore for the processing of this type, how drift exits encounters stubborn problem.
Summary of the invention
The present invention seeks to propose a kind of Forging Technology of a kind of ballistic method making drift can exit metal forging smoothly processing deepened type blind hole.
The present invention is characterized as being: produce the inclined-plane with 5��7 �� of gradients on drift, after drift punching reaches projected depth, is laid across by blank, in cylindrical at least one week of tup light press forging part, then deviates from drift from forging.
Along with drift gos deep into metallic object under hammering, impact shock will make to occur between drift and metallic object gap, namely can produce oxide skin in accumulation hole, gap, and oxide skin at high temperature has certain lubrication. Owing to excessively deep blind hole there is also the problem that drift can't get out, now after drift punching reaches projected depth, blank is laid across, in cylindrical at least one week of tup light press forging part, through the impact shock of tup, then just can successfully deviate from drift from forging.
The present invention is convenient to be produced, laborsaving, and forming improves the utilization rate of workpiece.
Detailed description of the invention
Design forging process: chamfered edge, pulling, jumping-up, pulling, socket form moulding, the deep blind hole of punching.
Forge weight 3100Kg, forging temperature 1260 DEG C��750 DEG C, adopt 11T(EF+LF+VD) one forging of steel ingot three.
Forging operation detailed process:
By designing requirement sawing, remove Steel ingot feeder head, bottom rejected material, single-piece material weight 3250Kg.
Steel billet is come out of the stove after 1230��1260 DEG C of soaks, and chamfered edge, pulling, to �� 650mm, are melted down.
Steel billet reenters stove heating, comes out of the stove after 1230-1260 DEG C of soak, and jumping-up is to �� 1000mm, and then pulling is to �� 650mm, then melts down.
The assembling die assembled is placed on forging press mobile working platform.
Steel billet is come out of the stove after 1230-1260 DEG C of soak, inserts in mould interstitial hole after removing billet surface oxide skin.
On forging press, anvil moves down upsetting and presses close to mould upper surface, backhaul to hammering block, hangs on diameter and is slightly less than the round steel plug of �� 650mm, presses plug until metal is full of impression, backhaul under upper anvil.
Drift is produced the inclined-plane with 5��7 �� of gradients.
Hang out plug, hang on drift and first go out 60mm deep hole.
Blank is laid across, in cylindrical at least one week of tup light press forging part, from forging, then deviates from drift then the demoulding, obtain forging workpiece.
After testing: steel ingot utilization rate 84.5%.
Claims (1)
1. a kind of Forging Technology of ballistic method processing deepened type blind hole, it is characterized in that: on drift, produce the inclined-plane with 5��7 �� of gradients, after drift punching reaches projected depth, blank is laid across, in cylindrical at least one week of tup light press forging part, from forging, then deviate from drift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604086.9A CN105618649A (en) | 2014-11-03 | 2014-11-03 | Forging technique for machining deepened blind hole through impact method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604086.9A CN105618649A (en) | 2014-11-03 | 2014-11-03 | Forging technique for machining deepened blind hole through impact method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105618649A true CN105618649A (en) | 2016-06-01 |
Family
ID=56034206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410604086.9A Pending CN105618649A (en) | 2014-11-03 | 2014-11-03 | Forging technique for machining deepened blind hole through impact method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105618649A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036820A (en) * | 2019-12-25 | 2020-04-21 | 江西景航航空锻铸有限公司 | Press-in type free forging forming method |
-
2014
- 2014-11-03 CN CN201410604086.9A patent/CN105618649A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036820A (en) * | 2019-12-25 | 2020-04-21 | 江西景航航空锻铸有限公司 | Press-in type free forging forming method |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |