KR100908919B1 - Manufacturing method of automobile mounting pipe - Google Patents
Manufacturing method of automobile mounting pipe Download PDFInfo
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- KR100908919B1 KR100908919B1 KR1020070063475A KR20070063475A KR100908919B1 KR 100908919 B1 KR100908919 B1 KR 100908919B1 KR 1020070063475 A KR1020070063475 A KR 1020070063475A KR 20070063475 A KR20070063475 A KR 20070063475A KR 100908919 B1 KR100908919 B1 KR 100908919B1
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- forming
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- mounting pipe
- groove
- diameter
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/03—Making uncoated products by both direct and backward extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/14—Making machine elements fittings
- B21K1/16—Making machine elements fittings parts of pipe or hose couplings
Abstract
본 발명은 자동차에 설치되어 다른 부품을 설치되도록 지지하는 역할을 하는 마운팅 파이프의 제조방법에 관한 것으로, 특히 종래에 비하여 공정을 간단하면서도 견고하고 효율적인 제조가 가능토록 개선한 것이다.The present invention relates to a manufacturing method of a mounting pipe, which is installed in an automobile and supports other parts to be installed, and more particularly to a manufacturing method which is simpler and robust and efficient than the conventional method.
제조공정의 요지로는, 절단된 소재(1)의 길이를 줄이고 직경을 확대시키는 업셋팅 공정과, 소재(1)의 앞면과 뒷면에 예비요홈(2)을 형성하는 공정과, 소재의 일측면에 요홈(3)을 형성하여 관체부(4)가 되도록 압출을 함과 동시에 반대 측면에도 그보다 낮은 깊이의 요홈(5)을 형성하는 동시후방압출 공정과, 일측의 요홈(3)과 반대편의 요홈(5) 사이를 관통시키는 피어싱 공정과, 일측의 외경과 내경을 축소시켜 축소부(6)와 경사부(7)를 형성하는 전방압출 공정과, 단턱(8)을 형성함과 동시에 축소부(6) 내의 직경확장부(9)를 형성하여 제조를 완료하는 업셋팅 공정으로 이루어짐을 특징으로 한다.The manufacturing process includes an upsetting step of reducing the length of the cut material 1 and enlarging the diameter of the cut material 1, a step of forming a preliminary groove 2 on the front and back surfaces of the material 1, (3) to form a tubular body (4), and at the same time forming a recess (5) with a depth lower than that of the recess (3) (5), a forward extrusion step of forming a reduced portion (6) and an inclined portion (7) by reducing an outer diameter and an inner diameter of one side and a step of forming a step (8) 6), and an upsetting step of completing the manufacturing process.
마운팅 파이프, 엡셋팅, 포밍기, 전방압출, 후방압출, 피어싱 Mounting pipe, abse setting, forming machine, forward extrusion, rear extrusion, piercing
Description
도 1은 종래 마운팅 파이프의 제조공정 순서도FIG. 1 is a flowchart of a manufacturing process of a conventional mounting pipe
도 2는 본 발명에 의한 마운팅 파이프의 제조공정 순서도Fig. 2 is a flowchart of a manufacturing process of a mounting pipe according to the present invention.
***도면의 주요 부분에 대한 부호의 설명***DESCRIPTION OF THE REFERENCE SYMBOLS
1: 소재1: Material
2: 예비요홈2: Preliminary groove
3: 요홈3: groove
4: 관체부4:
5: 요홈5: groove
6: 축소부6:
7: 경사부7:
8: 단턱8: Step
9: 직경 확장부9:
본 발명은 자동차에 설치되는 마운팅 파이프의 제조방법에 관한 것으로, 특히 종래에 비하여 공정을 간단하면서도 견고하고 효율적인 제조가 가능토록 개선한 것이다. The present invention relates to a manufacturing method of a mounting pipe installed in an automobile. In particular, the present invention improves the manufacturing process so that the manufacturing process can be simple, robust and efficient.
주지된 바와 같이 자동차용 마운팅 파이프는 자동차의 메인부품과 보조부품을 연결하는 기능을 하는 중요한 역할을 하는 부품으로서 자동차의 여러 부분에 많은 갯수의 마운팅 파이프가 사용되며, 따라서 신속하고 저렴한 생산과 균일하고 내구성이 높은 품질이 요구된다 할 것이다. As is well known, the automotive mounting pipe is an important part that functions to connect the main part of the vehicle with the auxiliary part, and a large number of mounting pipes are used in various parts of the vehicle. Therefore, High quality durability will be required.
종래 마운팅 파이프를 제조하는 공정을 도 1을 통하여 살펴보면, 소재(1')를 절단한 후 업셋팅으로 길이를 줄이면서 직경을 크게 하고 후방압출을 통하여 후방의 직경을 줄이면서 내부에 요홈(2')을 형성하여 주며, 다시 한 번 업셋팅을 통하여 직경을 늘이면서 길이를 줄이게 되고 또다시 후방압출을 통하여 후방의 길이를 늘이면서 요홈(2')을 더욱 깊이 형성한다. Referring to FIG. 1, a conventional process for manufacturing a mounting pipe is as follows. After cutting the workpiece 1 ', the diameter of the workpiece is increased while decreasing its length by upsetting, The length of the groove 2 'is further increased by increasing the diameter of the groove 2' by further upwardly setting the groove 2 'while extending the length of the rear side through the backward extrusion.
그리고 다시 후방압출을 실시함과 동시에 반대쪽에 또 다른 요홈(3')을 형성하고 업셋팅 공정을 통하여 외면에 걸림턱(4')을 형성하여 주는 것이며, 이러한 포밍기를 이용한 공정 외에도 프레스를 이용한 피어싱 공정을 통하여 양측 요홈(2')(3')을 관통시키고, 이 경우에도 내경이 완성되지 못하므로 다시 CNC가공을 통하여 내경을 가공함으로써 제조를 완료하는 등 8번의 공정으로 제조가 완료되는 것이다.Further, another backing 3 'is formed on the opposite side and a hooking step 4' is formed on the outer surface by an upsetting process. In addition to the process using such a forming machine, (2 ') and (3') through the process. In this case, the inner diameter is not completed. Thus, the inner diameter is processed through CNC machining to complete the manufacturing process.
이러한 종래 제조방법에 의하면 제조 공정이 까다롭고 시간이 많이 걸리며, 가공공정의 포함으로 인하여 제조원가가 크게 상승하는 단점과 품질이 균일하지 못 한 단점이 있었다.According to such a conventional manufacturing method, the manufacturing process is complicated and takes a long time, and the disadvantage that the manufacturing cost is greatly increased due to the inclusion of the processing step and the disadvantage that the quality is not uniform.
본 발명은 상기한 문제점을 감안하여 안출한 것으로, 포밍기만을 이용하여 가공이 가능한 간단한 공정을 통하여 마운팅 파이프를 제조토록 하고 내경을 별도로 가공할 필요 없이 제조를 완료할 수 있는 방법을 제공함으로써 공정의 단순화에 의한 제조원가의 인하와 품질의 균일성을 달성함을 목적으로 하는 것이다. SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for manufacturing a mounting pipe through a simple process that can be performed using only a forming machine and without requiring an inner diameter to be separately processed, And to achieve a reduction in manufacturing cost by simplification and uniformity in quality.
본 발명은 절단된 소재를 업셋팅, 예비성형, 동시후방압출, 피어싱, 전방압출, 업셋팅 등의 간단한 공정으로 제조를 완료하고, 피어싱을 먼저 실시한 후 내경을 가공토록 함을 특징으로 하는바, 이하 첨부된 도면에 의거 본 발명의 바람직한 실시 예를 상세히 살펴보면 다음과 같다. The present invention is characterized in that the cut material is finished by a simple process such as upsetting, preforming, simultaneous backward extrusion, piercing, forward extrusion, upsetting, etc., and the inner diameter is machined after piercing is performed first. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명에 의한 마운팅 파이프의 제조공정 순서도이다.2 is a flow chart of a manufacturing process of a mounting pipe according to the present invention.
제1공정(업셋팅)The first step (upsetting)
절단된 소재(1)를 업셋팅하여 길이를 줄이고 직경을 확대시킨다.The cut material (1) is upsetted to reduce its length and enlarge its diameter.
제2공정(예비성형)The second step (preforming)
소재(1)의 앞면과 뒷면에 낮은 깊이로 예비요홈(2)을 형성한다.A preliminary groove (2) is formed on the front surface and the rear surface of the work (1) with a low depth.
제3공정(동시후방압출)Third step (simultaneous backward extrusion)
소재의 일측면에 요홈(3)을 형성하여 관체부(4)가 되도록 압출을 함과 동시에 반대 측면에도 그보다 낮은 깊이의 요홈(5)을 형성한다.A recess (3) is formed on one side of the blank to be extruded to be the tubular part (4), and a recess (5) having a depth lower than that of the recess is formed on the opposite side.
제4공정(피어싱)Fourth step (Piercing)
일측의 요홈(3)과 반대편의 요홈(5) 사이를 관통시켜 완전한 관체 형태를 만들어 준다.And passes through between the
제5공정(전방압출)Fifth step (forward extrusion)
일측의 외경과 내경을 축소시켜 축소부(6)와 경사부(7)를 형성한다.The outer diameter and inner diameter of one side are reduced to form the reduced
제6공정(부분업셋팅)Sixth step (partial upsetting)
부분업셋팅으로서 단턱(8)을 형성함과 동시에 축소부(6) 내의 직경확장부(9)를 형성하여 제조를 완료한다.As a partial upsetting, the step 8 is formed and at the same time, the
이러한 순서로 제조되는 본 발명에 의하면 포밍기를 이용한 6번의 공정으로 마운팅 파이프를 제조하게 되는 것으로서, 별도의 CNC나 프레스를 이용한 가공 공정 등이 필요치 않고 대부분의 소성가공으로 제조가 완료되는 것으로, 제조에 많은 시간을 단축하게 되고 강도를 향상시킬 수 있게 되는 것이다. According to the present invention, which is manufactured in this order, a mounting pipe is manufactured by six processes using a forming machine, and a manufacturing process using most of the CNC or press without using a separate CNC or press is completed. It is possible to shorten a lot of time and to improve the strength.
또한 피어싱을 한 후에 전방압출을 통하여 내경을 가공하게 됨으로써 내경이 매끈하게 가공되는 것이므로 종래 방법에서 소성가공으로 하부 요홈과 상부요홈을 성형하고 남는 부분을 그 후에 피어싱을 하고 내경을 CNC로 가공하는 것에 비하여 공정 단축과 품질을 향상하게 되는 것이다.In addition, since the inner diameter is processed smoothly by machining the inner diameter through the forward extrusion after the piercing, the inner and outer grooves and the upper groove are formed by plastic working in the conventional method, It is possible to shorten the process and improve the quality.
이상 설명한 바와 같은 본 발명에 의하면 마운팅 파이프를 신속하게 간단하게 제조할 수 있게 되어 제조원가를 인하시킬 수 있고, 내구성도 향상되는 마운팅 파이프를 제공할 수 있게 되는 것으로서, 자동차에서 중요한 부품의 하나인 마운팅 파이프를 저렴하게 공급할 수 있게 되고 품질의 향상을 이룩할 수 있게 되는 유용한 발명인 것이다.As described above, according to the present invention, it is possible to provide a mounting pipe that can be manufactured quickly and simply, thereby reducing the manufacturing cost and improving the durability. The mounting pipe, which is one of important parts in automobiles, Can be supplied at low cost, and quality can be improved.
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Cited By (3)
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CN104148889A (en) * | 2014-07-07 | 2014-11-19 | 河南科技大学 | Square plate shell blank forming method and matched forming dies thereof |
CN105269254A (en) * | 2014-07-24 | 2016-01-27 | 杜云龙 | Machining technology for sound eliminator of internal combustion engine exhaust system |
KR20210083920A (en) | 2019-12-27 | 2021-07-07 | 린노알미늄 주식회사 | Method for manufacturing center expansion inner tube using extrusion and forging hybrid process, and center expansion inner tube to which this method is applied |
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