KR930008551B1 - How to manufacture semifinished products of conical parts - Google Patents
How to manufacture semifinished products of conical parts Download PDFInfo
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- KR930008551B1 KR930008551B1 KR1019910018582A KR910018582A KR930008551B1 KR 930008551 B1 KR930008551 B1 KR 930008551B1 KR 1019910018582 A KR1019910018582 A KR 1019910018582A KR 910018582 A KR910018582 A KR 910018582A KR 930008551 B1 KR930008551 B1 KR 930008551B1
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- South Korea
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- center
- upper mold
- semi
- center rod
- mold
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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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
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- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Powder Metallurgy (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 본 발명에서의 금형 단면도.1 is a cross-sectional view of a mold in the present invention.
제 2 도는 본 발명에 의하여 제조된 원추형 부품의 반제품의 사시도.2 is a perspective view of a semifinished product of a conical part made in accordance with the present invention.
제 3 도는 본 발명에서의 원추형 부품의 반제품을 가공하여 생산한 원추형부품에 대한 반단면사시도.3 is a half sectional perspective view of a conical component produced by processing a semi-finished product of the conical component of the present invention.
제 4 도는 종래의 원추형 부품의 반단면 사시도.4 is a half cross-sectional perspective view of a conventional conical component.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 하부금형 11 : 삽입부1: lower mold 11: insertion part
2 : 중심봉 3 : 상부금형2: center rod 3: upper mold
4, 4' : 돌기 5 : 원추형부품4, 4 ': protrusion 5: conical part
6, 6 ' : 요홈 7 : 구멍6, 6 ': groove 7: hole
본 발명은 일정중량을 갖도록 하고, 센터 가공이 용이하도록 한 원추형 부품의 반제품을 제조하는 방법에 관한 것이다.The present invention relates to a method for producing a semifinished product of a conical part to have a constant weight and to facilitate center processing.
종래에는 제 4 도에 도시된 바와 같은 원추형 부품을 생산하기 위하여, 재료금속을 고정기기(선반)에 고정시킨 다음 바이트로 금속의 표면을 절삭하여 소정형태로 가공하였다.Conventionally, in order to produce a conical part as shown in FIG. 4, a material metal is fixed to a fixture (shelf), and then the surface of the metal is cut into a bite and processed into a predetermined shape.
그러나, 이러한 종래의 방법은 가공시간이 오래 걸리는 단점이 있고, 일정형상으로 절삭함으로써 자재의 낭비를 초래하였으며, 절삭으로 부품의 중량을 일정하게 유지하기가 까다로와서 부품중량으로 인한 불량률이 높고, 이로인한 제품의 균일성을 유지하기 곤란하였다. 또, 원추형으나 반구형등의 곡명으로 형성된 부품의 센터가공이 용이하지 못하고, 다음 공정에 제품의 고정 및 완제품 제조에 어려움이 있었으며, 이로 인하여 부품의 불량률이 상승하는 단점이 발생되었다.However, such a conventional method has a disadvantage in that it takes a long processing time, and it causes waste of materials by cutting in a certain shape, and it is difficult to keep the weight of the parts constant by cutting, so that the defective rate due to the weight of the parts is high, This made it difficult to maintain uniformity of the product. In addition, there is a conical shape, but the center processing of the parts formed in the shape of a curve such as hemispherical shape is not easy, there is a difficulty in the fixing of the product and the manufacture of the finished product in the next process, resulting in an increase in the defective rate of the parts.
따라서 본 발명은 상기한 문제점을 해소하기 위하여 착안한 것으로서 분말야금으로 원추형이나 반구형등 곡면이 형성된 반제품을 소정의 형상 및 중량으로 제조하고, 다음 공정에서 원추형 부품으로 가공하기 용이하도록 한 것이다.Therefore, the present invention was conceived in order to solve the above problems, and to make a semi-finished product having a curved surface such as a conical shape or a hemispherical shape with powder metallurgy in a predetermined shape and weight, and to be easily processed into a conical component in the next process.
본 발명은 원추형 부품의 반제품을 제조하는 방법으로서, 먼저 하부금형과 상부금형을 제작하는데, 하부금형은 소정의 길이를 가진 중심봉을 그 중심에 가지고 있는 분말금속 삽입부를 갈때기 형으로 만들고, 상부금형은 그 중심에 상기 중심봉을 받아들일만한 크기의 중심구멍을 소정 깊이로 파고, 하나 이상의 돌기가 중심구멍과 원주사이의 표면에 돌출되도록 형성되어 있는 원판형으로 만들어, 하부금형내에 분말금속을 충진시킨 후 상부금형으로 압축시키면서 열을 가하여 원추형 부품의 반제품을 제조하는 방법이다. 여기서 상부금형에 형성되어 있는 돌기가 중심구멍에 대하여 서로 대칭되는 위치에 두 개가 형성되어 있도록 하고, 하부금형의 중심봉의 길이를 제조될 반제품의 높이보다 작게하여 반제품의 일측에만 중심축구멍이 형성되도록 하여도 된다.The present invention is a method of manufacturing a semi-finished product of the conical part, first to produce a lower mold and an upper mold, the lower mold is made of a powder metal insert having a center rod having a predetermined length at its center, the upper mold, The core is dug to a predetermined depth in the center to accept the center rod to a predetermined depth, and is formed into a disk shape formed with one or more projections protruding from the surface between the center hole and the circumference to fill the powder metal in the lower mold It is a method of manufacturing semi-finished products of conical parts by applying heat while compressing the upper mold. Here, two projections formed on the upper mold are formed at positions symmetrical with respect to the center hole, and the length of the center rod of the lower mold is smaller than the height of the semifinished product to be manufactured so that the central shaft hole is formed only on one side of the semifinished product. You may also do it.
또, 하부금형에는 중심봉을 없애고, 상부금형의 중심에 중심봉을 설치하여도 된다.In addition, the center rod may be removed from the lower mold and the center rod may be provided at the center of the upper mold.
이하 첨부된 도면을 참조하면서 원추형 부품의 제조과정을 상세히 설명하면 다음과 같다.Hereinafter, the manufacturing process of the conical component with reference to the accompanying drawings in detail as follows.
제 1 도는 통상의 분말야금 장비에서 사용할 금형의 일부를 도시한 것이며, 통상의 분말야금장비는 분말금속을 금형으로 가압하여 일정형상 및 중량을 갖는 부품을 가공할 수 있도록 되어있다.1 shows a part of a mold to be used in a conventional powder metallurgy equipment, and a conventional powder metallurgy equipment is capable of pressing a powder metal into a mold to process a part having a certain shape and weight.
본 발명에서는 먼저 하부금형과 상부금형을 제작한다. 하부금형(1)은 소정의 길이를 가진 중심봉(2)을 그 중심에 가지고 있는 분말금속 삽입부(11)를 갈때기 형으로 만들고, 상부금형(3)은 그 중심에 상기 중심봉(2)을 받아들일만한 크기의 중심구멍(8)을 소정 깊이로 형성하고 하나 이상의 돌기(4,4')가 중심구멍(8)과 원주(9)사이의 표면(10)에 돌출되도록 형성한 원판형으로 만든다.In the present invention, first, the lower mold and the upper mold are manufactured. The lower mold 1 makes the powder metal insert 11 having a center rod 2 having a predetermined length at the center thereof into a grind shape, and the upper mold 3 has the center rod 2 in the center thereof. It is disc-shaped in which an acceptable sized central hole 8 is formed to a predetermined depth and one or more projections 4 and 4 'protrude into the surface 10 between the central hole 8 and the circumference 9. Make.
이렇게 금형을 제작한 다음, 통상의 분말야금 장비에 하부 및 상부금형을 설치하여 하부금형의 삽입부(11)내에 분말금속을 충진시킨 후 상부금형으로 압축시키면서 열을 가하여 원추형 부품의 반제품을 제조한다.After the mold is manufactured, the lower and upper molds are installed in ordinary powder metallurgy equipment to fill powder metal into the insert 11 of the lower mold, and then press heat while compressing the upper mold to manufacture semi-finished products of conical parts. .
이렇게 하여 분말금속이 일정중량으로 상, 하금형(3)(1)과 대응되는 형상의 반제품으로 손쉽게 제조된다.In this way, the powder metal is easily manufactured into a semi-finished product having a shape corresponding to the upper and lower molds (3) (1) with a predetermined weight.
여기서, 상부금형(3)을 제작할 때, 형성되는 돌기가 중심구멍에 대하여 서로 대칭되는 위치에 두 개가 형성되도록 하고, 또 하부금형의 중심봉의 길이를 제조될 반제품의 높이보다 작게하여 반제품의 일측에만 중심축구멍(7)이 형성되도록 하여도 된다. 또, 하부금형에는 중심봉을 없애고, 상부금형의 중심에 중심봉을 설치하여도 된다. 이러한 금형을 이용하므로써, 상기 중심봉(2)과 돌기(4)(4')가 일직선상에 형성되어 원추형부품(5)의 구멍(7) 및 요홈(6)(6')도 일직선상에 대응되게 형성된다.Here, when manufacturing the upper mold (3), two projections are formed in a position symmetrical with respect to the center hole, and the length of the center rod of the lower mold is smaller than the height of the semi-finished product to be manufactured only on one side of the semi-finished product The central shaft hole 7 may be formed. In addition, the center rod may be removed from the lower mold and the center rod may be provided at the center of the upper mold. By using such a mold, the center bar 2 and the projections 4 and 4 'are formed in a straight line so that the holes 7 and the recesses 6 and 6' of the conical part 5 also correspond to a straight line. Is formed.
따라서 이 반제품을 이용하면 다음 공정의 가공시 요홈(6)(6')과 구멍(7)을 직선상으로 고정하여 센터등을 정밀하게 가공할 수 있는 것이다.Therefore, this semi-finished product can be used to precisely process the center and the like by fixing the grooves 6, 6 'and the holes 7 in a straight line during the next process.
상술한 바와같이 본 발명으로 제조된 원추형 부품의 반제품을 사용하므로, 가공이 용이하고, 부품의 중량을 항상 일정하게 가공할 수 있으며, 다음 공정의 정밀가공이 용이하도록 하여 불량률을 최소로 하고, 작업의 까다로움을 해소시켜 생산성을 향상시킬 수 있는 것이다.As described above, since the semi-finished products of the conical parts manufactured by the present invention are used, the processing is easy, the weight of the parts can be processed constantly, and the precision of the next process can be facilitated to minimize the defective rate, It can improve productivity by eliminating the difficulty.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910018582A KR930008551B1 (en) | 1991-10-22 | 1991-10-22 | How to manufacture semifinished products of conical parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910018582A KR930008551B1 (en) | 1991-10-22 | 1991-10-22 | How to manufacture semifinished products of conical parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930007550A KR930007550A (en) | 1993-05-20 |
| KR930008551B1 true KR930008551B1 (en) | 1993-09-09 |
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ID=19321612
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019910018582A Expired - Fee Related KR930008551B1 (en) | 1991-10-22 | 1991-10-22 | How to manufacture semifinished products of conical parts |
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| Country | Link |
|---|---|
| KR (1) | KR930008551B1 (en) |
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1991
- 1991-10-22 KR KR1019910018582A patent/KR930008551B1/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| KR930007550A (en) | 1993-05-20 |
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