公开(公告)号：KR100448128B1

公开(公告)日：2004-09-10

申请号：KR1020020024676

申请日：2002-05-06

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C22C38/16

Abstract: PURPOSE: A composition for road wheel material is provided, and a manufacturing method of road wheel is provided to produce high strength road wheel by nitrocarburization under certain conditions after press working and welding a work containing the composition. CONSTITUTION: The composition for road wheel material comprises a main constituent of iron (Fe), 0.25 wt.% or less of carbon (C), 0.25 wt.% or less of silicon (Si), 0.1 to 1.8 wt.% of manganese (Mn), 0.03 wt.% or less of phosphorus (P), 0.02 wt.% or less of sulfur (S), 0.9 to 2.2 wt.% of copper (Cu), 0.005 to 0.03 wt.% of titanium (Ti), 0.025 to 0.045 wt.% of niobium (Nb) and 0.01 to 0.03 wt.% of aluminum (Al). In a manufacturing method of road wheel for automobiles comprising the steps of welding the formed road wheel material after forming the road wheel material by press-working a road wheel material containing a main constituent of iron (Fe), and heat treating the press worked and welded road wheel material thereafter, the manufacturing method of road wheel comprises the processes of welding the formed road wheel material after forming the road wheel material by press-working a road wheel material containing the above composition; nitrocarburizing the road wheel material for 40 to 130 min by heating the press worked and welded road wheel material to the temperature range of 450 to 650 deg.C; and cooling the nitrocarburized road wheel material.

Abstract translation: 目的：提供一种用于道路车轮材料的组合物，并且提供一种制造道路车轮的方法，用于在压制加工和焊接含有该组合物的工件之后，在一定条件下通过氮碳共渗生产高强度车轮。 用于车轮材料的组合物包括铁（Fe），0.25重量％或更少的碳（C），0.25重量％或更少的硅（Si），0.1-1.8重量％的锰 （Mn），0.03重量％或更少的磷（P），0.02重量％或更少的硫（S），0.9至2.2重量％的铜（Cu），0.005至0.03重量％的钛（Ti ），0.025-0.045重量％的铌（Nb）和0.01-0.03重量％的铝（Al）。 在用于汽车的车轮的制造方法中，包括以下步骤：在形成车轮材料之后通过对包含铁（Fe）主要成分的车轮材料进行压力加工并且对压力机加工进行热处理来形成车轮材料， 所述车轮制造方法包括以下步骤：在形成所述车轮材料之后，通过对包含上述组分的车轮材料进行压力加工而将所形成的车轮材料焊接; 通过将压制加工和焊接的车轮材料加热至450至650℃的温度范围，将道路车轮材料氮碳共渗40至130分钟; 并冷却氮碳共渗的道路车轮材料。

公开(公告)号：KR1020030087108A

公开(公告)日：2003-11-13

申请号：KR1020020024676

申请日：2002-05-06

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C22C38/16

Abstract: PURPOSE: A composition for road wheel material is provided, and a manufacturing method of road wheel is provided to produce high strength road wheel by nitrocarburization under certain conditions after press working and welding a work containing the composition. CONSTITUTION: The composition for road wheel material comprises a main constituent of iron (Fe), 0.25 wt.% or less of carbon (C), 0.25 wt.% or less of silicon (Si), 0.1 to 1.8 wt.% of manganese (Mn), 0.03 wt.% or less of phosphorus (P), 0.02 wt.% or less of sulfur (S), 0.9 to 2.2 wt.% of copper (Cu), 0.005 to 0.03 wt.% of titanium (Ti), 0.025 to 0.045 wt.% of niobium (Nb) and 0.01 to 0.03 wt.% of aluminum (Al). In a manufacturing method of road wheel for automobiles comprising the steps of welding the formed road wheel material after forming the road wheel material by press-working a road wheel material containing a main constituent of iron (Fe), and heat treating the press worked and welded road wheel material thereafter, the manufacturing method of road wheel comprises the processes of welding the formed road wheel material after forming the road wheel material by press-working a road wheel material containing the above composition; nitrocarburizing the road wheel material for 40 to 130 min by heating the press worked and welded road wheel material to the temperature range of 450 to 650 deg.C; and cooling the nitrocarburized road wheel material.

Abstract translation: 目的：提供一种用于车轮材料的组合物，并且在压制加工和焊接包含该组合物的工件之后，在某些条件下通过氮碳共渗提供路轮的制造方法来制造高强度车轮。 构成：用于道路轮材料的组合物包括铁（Fe），0.25重量％以下的碳（C），0.25重量％以下的硅（Si），0.1〜1.8重量％的锰 （Mn），0.03重量％以下的磷（P），0.02重量％以下的硫（S），0.9〜2.2重量％的铜（Cu），0.005〜0.03重量％的钛 ），0.025〜0.045重量％的铌（Nb）和0.01〜0.03重量％的铝（Al）。 一种汽车用车轮的制造方法，其特征在于，在形成所述车轮材料后，通过对包含铁（Fe）的主要成分的道路材料进行加压加工，对所述加工加工进行热处理，以及 此后的焊接路轮材料的制造方法包括以下步骤：通过对包含上述组成的车轮材料进行加压加工而形成车轮材料之后焊接成形的车轮材料; 将压轮加工和焊接车轮材料加热至450〜650℃的温度范围，将路轮材料氮碳共渗40〜130分钟; 并冷却氮碳共渗路面材料。

公开(公告)号：KR1020030034548A

公开(公告)日：2003-05-09

申请号：KR1020010066170

申请日：2001-10-26

Applicant: 한국기계연구원 ,  주식회사 성우하이텍 ,  현대자동차주식회사

Inventor： 서정 ,  이제훈 ,  김정오 ,  이문용 ,  이두환 ,  신철수

IPC: C21D1/09

Abstract: PURPOSE: A method for strengthening stiffness of steel sheet for automobile using laser strengthening capable of attempting weight reduction of precision molded parts for automobile and improving strength of matrix of the steel sheet, and a molded part fabricated through the method are provided. CONSTITUTION: The method is characterized in that stiffness is given to the steel sheet by forming a specific shaped fusion pattern fused onto the surface of steel sheet matrix by heating through a pattern forming means in order to reinforce stiffness of a specific region of the steel sheet(400) for automobile, wherein stiffness is reinforced by directly irradiating a laser beam onto the steel sheet matrix through a welding head having superior Nd:YAG laser beam convergence to form a fusion pattern(401) through heating or forming a fusion pattern on the surface of the steel sheet matrix(400) through a welding head capable of forming a fusion pattern(401) on a relatively large area although convergence is lower compared to the former welding head, and the method not only reinforces stiffness, but also reduces weight without using of any separate member since stiffness is improved as structure of the fusion pattern part is being reinforced compared to other parts by directly heating the steel sheet matrix for automobile, thereby locally forming a fusion pattern.

Abstract translation: 目的：提供一种加强汽车用钢板的刚度的方法，其使用激光加固能够实现汽车精密成型部件的重量减轻，提高钢板的基体强度，以及通过该方法制造的成型部件。 构成：该方法的特征在于，通过形成通过图案形成装置加热而在钢板基体的表面上熔合的特定形状的融合图案，以提高钢板的特定区域的刚度，来赋予钢板刚度 （400），其中刚度通过具有优异的Nd：YAG激光束会聚的焊接头将激光束直接照射到钢板基体上来增强，以通过加热或形成融合图案形成融合图案（401） 通过能够在较大面积上形成融合图案（401）的焊接头的钢板基体（400）的表面尽管与前者的焊接头相比收敛较小，该方法不仅增强了刚度，而且还减轻了重量 而不使用任何单独的构件，因为通过直接加热而与其它部件相比，通过改善融合图案部分的结构，因为硬度得到改善 汽车用钢板基体，从而局部形成融合图案。

公开(公告)号：KR100260216B1

公开(公告)日：2000-07-01

申请号：KR1019970053588

申请日：1997-10-18

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C21D9/00

Abstract: PURPOSE: A method for manufacturing bolts is provided which rationalizes the process and has fatigue strength and superior properties by improving existing bolt manufacturing process. CONSTITUTION: The method for manufacturing bolts comprises the processes of performing rolling process without spheroidizing using low carbon steel or low carbon alloy steel comprising 0.25 wt.% or less of carbon, 0.15 to 0.35 wt.% of silicon, 0.6 to 1.60 wt.% of manganese, 0.03 wt.% or less of phosphorous, 0.03 wt.% or less of S, 0.005 wt.% or less of boron, 1.2 wt.% or less of chromium, and 0.35 wt.% or less of molybdenum; carrying out dilute carburizing process of heat treating the resulting steel at a temperature of 850 to 920 deg.C for 60 to 200 minutes so that a potential carbon becomes 0.6 to 0.7 wt.%; and carrying out tempering process on the dilute carburized steel at a temperature of 450 to 600 deg.C.

Abstract translation: 目的：提供螺栓制造方法，通过改进现有的螺栓制造工艺，使工艺合理化，具有疲劳强度和优异的性能。 构成：用于制造螺栓的方法包括使用低碳钢或含有0.25重量％以下的碳，0.15〜0.35重量％的硅，0.6〜1.60重量％的低碳钢或低碳合金钢进行球化的方法， 的锰，0.03重量％以下的磷，0.03重量％以下的S，0.005重量％以下的硼，1.2重量％以下的铬和0.35重量％以下的钼。 进行在850〜920℃的温度下对所得到的钢进行60〜200分钟的热处理，使得可能的碳为0.6〜0.7重量％。 并在450℃〜600℃的温度下对稀释的渗碳钢进行回火处理。

公开(公告)号：KR100252237B1

公开(公告)日：2000-04-15

申请号：KR1019960012885

申请日：1996-04-25

Applicant: 현대자동차주식회사

Inventor： 김재중 ,  김낙준 ,  김도향 ,  신철수 ,  박성진

IPC: C22C23/02

CPC classification number: C22C23/02

Abstract: PURPOSE: A magnesium alloy is provided which is suitable for the high pressure casting by having a high strength and a high toughness. CONSTITUTION: In a magnesium alloy comprising aluminum, zinc and silicon, the magnesium alloy comprises 4.3 to 10.0 wt.% of aluminum, 0.7 to 6.0 wt.% of zinc, 0.4 to 5.0 wt.% of silicon, 0.025 to 5.0 wt.% of phosphorous and 0.7 wt.% or less of copper.

Abstract translation: 目的：提供通过具有高强度和高韧性适用于高压铸造的镁合金。 构成：在包含铝，锌和硅的镁合金中，镁合金包含4.3〜10.0重量％的铝，0.7〜6.0重量％的锌，0.4〜5.0重量％的硅，0.025〜5.0重量％ 的磷和0.7重量％以下的铜。

公开(公告)号：KR1019990032524A

公开(公告)日：1999-05-15

申请号：KR1019970053588

申请日：1997-10-18

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C21D9/00

Abstract: 본 발명은 볼트류 제조방법에 관한 것으로서, 더욱 상세하게는 저탄소강을 사용하여 변형저항 감소와 변형능 향상을 도모하므로써 구상화 소둔 공정을 생략할 수 있고, 또한 표면 탄소량이 적은 약침탄법으로 열처리를 해주고 동시에 중온 소려를 해줌으로써 경도구배에 의하여 표면압축 잔류응력이 양호하게 형성되면서 동시에 연성을 확보할 수 있도록 공정을 획기적으로 향상시킨 볼트류 제조방법에 관한 것이다.

公开(公告)号：KR100482522B1

公开(公告)日：2005-04-14

申请号：KR1020020040136

申请日：2002-07-11

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C22C38/04

Abstract: 본 발명은 로드휠 디스크의 제조방법에 관한 것으로서, 더욱 상세하게는 경도를 증가시켜 로드휠의 두께를 줄이는 동시에 무게를 줄여서 경량화를 실현시킬 수 있도록 한 로드휠 디스크의 조성 및 그 제조방법에 관한 것이다.
즉, 핫 스템핑(Hot stamping) 열처리에 의하여 강도를 향상시킬 수 있고, 소재를 핫 스템핑시 냉각속도가 떨어져도 안정된 강도를 얻을 수 있으며, 강도 향상에 따라 두께를 줄여 경량화가 가능하며, 성형이 용이하고 강도가 안정화되므로 품질향상 및 불량율을 감소시킬 수 있도록 한 로드휠 디스크의 제조방법을 제공하고자 한 것이다.

公开(公告)号：KR1020020054531A

公开(公告)日：2002-07-08

申请号：KR1020000083652

申请日：2000-12-28

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C21D8/02

Abstract: PURPOSE: A process for manufacturing a bumper back beam with superior corrosion resistance and high tensile strength 80kgf/mm¬2 is provided. CONSTITUTION: The present method is characterized in that a high strength steel comprising C 0.02-0.3 wt.%, Si 0.03-0.35 wt.%, Mn 0.3-1.5 wt.%, Al 0.010-0.02 wt.%, P 0.03 wt.% or less, S 0.035 wt.% or less, and a balance of Fe is softened in the temperature range of 550 to 590°C wherein the high strength steel has tensile strength of higher than 60kgf/mm¬2.

Abstract translation: 目的：提供具有优异的耐腐蚀性和高拉伸强度80kgf / mm2的保险杠后梁的制造方法。 构成：本发明的方法的特征在于，将C 0.02-0.3重量％，Si 0.03-0.35重量％，Mn 0.3-1.5重量％，Al 0.010-0.02重量％，P 0.03重量％ ％以下，S为0.035重量％以下，余量由在550〜590℃的温度范围内软化，高强度钢的拉伸强度高于60kgf / mm2。

公开(公告)号：KR1020010059686A

公开(公告)日：2001-07-06

申请号：KR1019990067207

申请日：1999-12-30

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: C22C38/44

Abstract: PURPOSE: A composition of steel is provided which has a bainite structure having superior hardness and tensile strength. CONSTITUTION: The composition of steel having a bainite structure comprises 0.05 to 0.9 wt.% of C, 0.6 to 2.0 wt.% of Mn, 0.15 to 0.45 wt.% of Si, 0.03 wt.% or less of S, 0.035 wt.% or less of P, 0.1 to 1.2 wt.% of Cr, 0.15 to 0.6 wt.% of Mo and 0.3 to 1.2 wt.% of Ni, wherein the composition of steel having a bainite structure is manufactured by press quenching the heated steel composition for forming after heating the steel composition, or cooling the press quenched steel composition after press quenching the steel composition. The bainite structured steel composition manufactured by the press quenching method not only has a high strength through optimizing process of chemical composition ratios of a steel product, thus superior toughness, collision performance and durability of components, but also enables the light weight design due to the improvement of strength and toughness.

Abstract translation: 目的：提供一种具有优异的硬度和拉伸强度的贝氏体组织的钢组合物。 构成：具有贝氏体结构的钢的组成包括C：0.05〜0.9重量％，Mn：0.6〜2.0重量％，Si：0.15〜0.45重量％，S：0.03重量％以下，S：0.035重量％ 的P，0.1〜1.2重量％的Cr，0.15〜0.6重量％的Mo和0.3〜1.2重量％的Ni，其中，具有贝氏体组织的钢的组成是通过将加热后的钢 加热钢组合物后的成型用组合物，或者对钢组合物进行压制淬火后冷却压制淬火钢组合物。 通过冲压淬火法制造的贝氏体结构钢组合物不仅通过钢制品的化学组成比的优化处理具有高强度，因此具有优异的韧性，冲击性能和部件的耐久性，而且还能够实现由于 强度和韧性提高。

公开(公告)号：KR1019980060231A

公开(公告)日：1998-10-07

申请号：KR1019960079587

申请日：1996-12-31

Applicant: 현대자동차주식회사

Inventor： 신철수

IPC: B62D1/04

Abstract: 본 발명은 스티어링 휠의 제조방법에 관한 것으로서, 더욱 상세하게는 림, 스포크 및 보스부위로 이루어진 스티어링 휠을 제조함에 있어서 강(steel) 판재를 블랭킷 아웃(blanking-out)하고 림, 스포크 부위는 하나의 금형으로 동시에 성형하고, 림 부위 외측과 스포크 부위를 제외한 면 및 보스부위의 하단면을 트리밍(trimming)함으로써 기계적 특성이 우수하고 가공공정을 단순화 할 수 있는 스티어링 휠의 제조방법에 관한 것이다.