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The parking rod is a safety-critical component responsible for holding an automatic transmission (AT) vehicle in a stationary condition. As a safety part, its heat treatment conditions and cam angle accuracy are strictly specified. These requirements are essential to ensure that the vehicle remains securely stopped in the P range and does not move due to malfunction or misoperation. ■ Safety Requirements for the Rod The rod undergoes high-frequency induction hardening followed by tempering. During this process, precise control of surface hardness and case depth is required. In addition, the hardening pattern must never penetrate into non-designated areas. If the hardness is too low, wear progresses rapidly and the locking function may be lost. If the hardness is too high, the risk of brittle fracture increases. Proper management of the localized heat treatment pattern, which hardens only the specified areas, is the key to maintaining safety performance. ■ Safety Requirements for the Cam The cam requires a higher hardness than the rod, achieved through carburizing heat treatment, as it functions as a sliding contact surface repeatedly engaging with the rod and therefore demands high wear resistance. The case depth is strictly specified, and the cam angle is managed as a critical safety characteristic. Even a slight deviation in cam angle can alter engagement with the parking pawl, potentially causing a situation where the vehicle does not fully stop despite being in the P range. ■ Risks When Safety Characteristics Are Not Maintained Abnormal wear Part fracture Deformation due to improper heat treatment Cam angle deviation If any of these occur, the vehicle may begin to move even when the transmission is in the P range, directly leading to serious accidents and personal injury. ■ Manufacturing Control to Ensure Safety Performance To protect safety performance, the following controls are essential: Process assurance of heat treatment conditions (temperature, case depth, hardness) Visual inspection and hardness testing to verify hardening patterns High-precision cam angle measurement and lot variation control Measurement of deformation after heat treatment (straightness, dimensional changes) In-process checks for abnormal wear These activities are not merely quality control measures, but safety management practices aimed at accident prevention. ■ Strengths of Ohashi Tekko Vietnam At Ohashi Tekko Vietnam, heat treatment of rods and cams, as well as cam angle control, are managed as special safety characteristics in accordance with standards established by the Japanese headquarters. Through precise measurement of hardness, case depth, and cam angle, along with comprehensive evaluation of post–heat treatment deformation, the company ensures stable supply of high-reliability parking rods and related components that support vehicle safety. For more details, please download the PDF or feel free to contact us.
| Main 3 products | Cationic electrodeposition coating Pressing Press-fitting |
|---|---|
| Type of manufacturing | Not selected |
| Recommended manufacturing category |
1:Surface treatment - Coating - Electrodeposition coating 2:Assembly/Inspection - Assembly - Auto parts assembly 3:Auto parts manufacturing - Drive system part - Accelerator |
| Main 3 products | Metal Coating Luxury special paint Elevator design renewal |
|---|---|
| Type of manufacturing | Not selected |
| Recommended manufacturing category |
1:Surface treatment - Coating - Metal coating |
Spray Painting Automotive and HA
| Main 3 products | Auto Parts Air conditioner Microwave |
|---|---|
| Type of manufacturing | Electronic parts Home electrical appliances Transportation equipment |
| Recommended manufacturing category |
1:Surface treatment - Coating - Air-spray coating |
Our unique technology of nickel-less direct gold plating on stainless steel provides anti-allergy coating. It fulfills the requirements for our customers in both Japan and overseas.
| Main 3 products | Platinum plating Anodized aluminum Gold plating |
|---|---|
| Type of manufacturing | Industrial machinery Electronic parts Medical equipment |
| Recommended manufacturing category |
1:Surface treatment - Plating/Chemical conversion treatment - Gold/Silver plating 2:Surface treatment - Plating/Chemical conversion treatment - Titanium 3:Surface treatment - Coating - Electrodeposition coating 4:Surface treatment - Plating/Chemical conversion treatment - Alumite (anode oxidation) 5:Surface treatment - Plating/Chemical conversion treatment - Stainless steel 6:Surface treatment - Plating/Chemical conversion treatment - Rhodium 7:Surface treatment - Plating/Chemical conversion treatment - Electroless nickel (rack) 8:Surface treatment - Other surface treatment - Buffing 9:Surface treatment - Polishing/Lapping - Chemical polishing 10:Surface treatment - Printing and others - Pad printing |
試作ワンストップソリューションで 課題を一気に解決します 製品開発の初期段階から量産前の試作金型成形まで、開発フェーズに併せたサービスや製品を提供いたします ＜開発フェーズ＞ [ 企画・デザイン ] → [ 設計 ] → [ モデリング ] → [ 試作 ] → [ 試作金型 ] ◆デザイン 製品化を見据えたプロダクトデザインをご提案いたします ◆リバースエンジニアリング ハイエンドスキャナを使用し実製品の形状を基に忠実な３Dデータを作成します ◆筐体・機構設計 筐体への機構部品の実装や機構を設計いたします ◆３Dモデリング 有機的な形状から、面精度を要求される工業製品まで、幅広く対応いたします。 ◆3Dプリント 比較的初期段階の試作確認や注型のマスタとして使用する機会が多い工法です。 ◆切削(樹脂、金属) 材料から製品形状を削り出す工法です 寸法精度や形状の再現性は高く厳密な確認が必要な場合に利用されます ◆注型(硬質、軟質、シリコン) 同一形状を複数個製作する場合や、 ゴムライク品を試作する場合に使用される工法です ◆その他の工法 板金、ギア、バネ、石膏鋳造、ＦＡＣＥ ＵＰ など ◆試作金型成形 試作型を使用して成形いたします 量産前の実材料での検証に活用いただけます
| Main 3 products | Trial production |
|---|---|
| Type of manufacturing | Not selected Not selected Not selected |
| Recommended manufacturing category |
1:Designing - Product and part designing - Model designing 2:Development and production of prototype/Small-scale production - Prototype processing - Model manufacturing 3:Designing - Simulation - 3D modeling 4:Designing - Data creation (3D scan) - 3D printer 5:Surface treatment - Coating - Resin coating 6:Surface treatment - Printing and others - Silk screen printing 7:Development and production of prototype/Small-scale production - Prototype processing - Simple mold, prototype mold |
| Main 3 products | Cold Rolled Stainless Steel Strips Cold Rolled Carbon Steel Strips Composite Metal Materials |
|---|---|
| Type of manufacturing | Electrical component for transportation equipment Medical equipment Stationery products |
| Recommended manufacturing category |
1:Material - Steel component distribution - Stainless steel 2:Material - Specialized material distribution - Clad steel 3:Surface treatment - Coating - Electrical insulating |
High Transparency Optical Shaping Prototype INAC, known for high transparency machined products, proposes high transparency optical shaping models. Using a high transparency and moisture-proof material with our accumulated experiences of finishing techniques, the products we manufacture are the finest and high transparency. We achieved to manufacture complicated shapes for medical samples, automobiles, amusements, interiors etc. which are impossible to produce only with machining.
| Main 3 products | From Planning, Designing, Structural Designing to Prototype Manufacturing, Painting, Vacuum Evaporation Plating, Laser Exfoliation, Clear Optical Shaping Prototype Automobile Parts, OA Equipments, Amusement Parts, Medical Equipments, Designing and Assembling Assembling Jigs |
|---|---|
| Type of manufacturing | Industrial machinery Telecommunication equipment Transportation equipment |
| Recommended manufacturing category |
1:Development and production of prototype/Small-scale production - Machining - Machining (resin) 2:Development and production of prototype/Small-scale production - Prototype processing - Vacuum injection molding 3:Development and production of prototype/Small-scale production - Prototype processing - Photoforming 4:Surface treatment - Other surface treatment - Vacuum deposition 5:Surface treatment - Coating - Resin coating 6:Designing - Product and part designing - Model designing 7:Development and production of prototype/Small-scale production - Prototype processing - Plastic protocol machining |
| Main 3 products | Defense related equipment Outdoor enclosures Semiconductor related equipment |
|---|---|
| Type of manufacturing | Industrial machinery Telecommunication equipment Medical equipment |
| Recommended manufacturing category |
1:Development and production of prototype/Small-scale production - Sheet-metal processing - Precision sheet metal machining 2:Development and production of prototype/Small-scale production - Sheet-metal processing - Sheet metal protocol manufacturing 3:Development and production of prototype/Small-scale production - Sheet-metal processing - Chassis manufacturing 4:Mass production - Sheet-metal processing - Thin (t0.5 or less) / Small sheet metal processing 5:Development and production of prototype/Small-scale production - Sheet-metal processing - Coating 6:Surface treatment - Coating - Powder coating 7:Surface treatment - Printing and others - Silk screen printing 8:Mass production - Blank cutting - stainless 9:Mass production - Blank cutting - Copper / aluminum 10:Surface treatment - Plating/Chemical conversion treatment - Chemical conversion coating |
For small lots of resin molds, we offer companies that employ fairly expensive production dies our injection molding using simple dies with excellent cost performance. We can make 100 to 10,000 units of injection molds as per your company's request.
| Main 3 products | Prototype models Vacuum-cast models (silicon models, acrylic form) Simple aluminum die production |
|---|---|
| Type of manufacturing | Home electrical appliances Office automation equipment Telecommunication equipment |
| Recommended manufacturing category |
1:Die manufacturing - Plastic mold - Injection molding die 2:Development and production of prototype/Small-scale production - NC machining - Machining (vertical) 3:Development and production of prototype/Small-scale production - Prototype processing - Vacuum injection molding 4:Mass production - Plastic - Injection molding 5:Development and production of prototype/Small-scale production - NC machining - NC lathe machining 6:Parts manufacturing - Machinery part - Gear manufacturing 7:Development and production of prototype/Small-scale production - Sheet-metal processing - Sheet metal protocol manufacturing 8:Development and production of prototype/Small-scale production - Prototype processing - Photoforming 9:Surface treatment - Coating - Air-spray coating 10:Assembly/Inspection - Inspection - Measuring |
"[Robot system that performs insert molding by horizontal plastic injection molding] From the user's point of view, it is a system integrator but also a user that enables easy-to-use system cunstruction."
| Main 3 products | Design and manufacture of precision injection molding Design and manufacture of robot system Design and manufacture of precision injection mold parts |
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| Type of manufacturing | Industrial machinery Telecommunication equipment Electrical component for transportation equipment |
| Recommended manufacturing category |
1:Designing - Mold designing - Injection molding die 2:Designing - Industrial equipment designing - Automatic machinery manufacturing 3:Die manufacturing - Plastic mold - Injection molding die 4:Die manufacturing - Plastic mold - Insert molding die 5:Die manufacturing - Plastic mold - Thixo-molding die 6:Mass production - Plastic - Injection molding 7:Mass production - Plastic - Insert molding 8:Mass production - Plastic - Thixo-molding 9:Surface treatment - Coating - Resin coating 10:Surface treatment - Printing and others - Laser engraving |
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