上板塑性 List of Products and Services

This document provides a detailed explanation of cold forging. It richly introduces basic methods, mold structures, and manufacturing processes. It uses graphs, diagrams, and photographs for easy understanding, so if you are interested, please download it using the "PDF Download" button below. 【Contents (Excerpt)】 ■ About Forging ■ Features of Cold Forging ■ Basic Methods of Cold Forging ■ Mold Structures for Cold Forging <About Us> Our company can reduce costs by achieving "integrated production" in-house, from material cutting to cold forging and machining. Additionally, we can provide heat treatment and surface treatment through collaboration with partner companies. The primary materials we handle are steel materials, but we can also shape non-ferrous metals such as aluminum and copper. <Exhibition Information> Exhibition Name: 8th Nagoya Machine Elements Technology Exhibition M-Tech Date: April 12 (Wed) - April 14 (Fri), 2023 Venue: Port Messe Nagoya Booth Number: 1st Exhibition Hall 6-35 ◎ The download material "Textbook of Cold Forging" also includes an invitation ticket for the exhibition. *For more details, please refer to the PDF document or contact us.

• Processing Contract

The "Cold Forging Application Case Collection" introduces examples of processing through cold forging conducted by our company. It includes cases such as "cold forging of high carbon steel (SUJ2)" which improves yield by eliminating cutting, and "integrated forming through cold forging" which enables precision enhancement. 【Examples Included (Partial)】 ■ Cold forging of high carbon steel (SUJ2) ■ Cold forging of outer spline ■ Proposal of suitable processes and forging materials for cold forging through analysis ■ Near-net shape cold forging of hot forging materials ■ Integrated forming through cold forging ■ Inner diameter gear forming through cold forging ■ Development of sockets for double-ended ratchet wrenches *For more details, please refer to the PDF document or feel free to contact us.

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• Other Auto Parts

When embedding a 1.6mm thick plate shape from a round bar and trimming a thin plate shape, if the plate thickness is thin, distortion will occur. It is difficult to achieve flatness, but our product is produced with a flatness of 0.15. Please feel free to contact us when placing an order. 【Features】 ■ Thin plate shape: Thin-walled molding with a thickness of 1.6 ■ Flatness: 0.15 *For more details, please refer to the PDF document or feel free to contact us.

• Other Auto Parts

Coil material is suitable for mass production. However, it is basically round in shape, so it is formed into a square shape using a former, and then mass-produced into a square bifurcated shape using a press machine. 【Features】 ■ Square shape: Formed from coil material (round material) into a square shape ■ Bifurcated shape: Extrusion molding of a bifurcated shape *For more details, please refer to the PDF document or feel free to contact us.

• Other Auto Parts

When performing cold forging with carbon steel, the production limit for cup-shaped parts is considered to be a cross-sectional reduction rate of 75%. Our product is mass-produced in a range that greatly exceeds this limit, with a cross-sectional reduction rate of 87%. Please feel free to contact us when you need assistance. 【Features】 ■ Thin-walled cup: One-shot forming with a cross-sectional reduction rate of 87% ■ Four holes at the bottom of the cup: Simultaneous punching of the four holes in one process *For more details, please refer to the PDF document or feel free to contact us.

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Dimensional tolerances required due to the special nature of the product, even down to the micron level, can be accommodated in-house until the finished product. Please feel free to contact us when placing an order. 【Features】 ■Outer diameter tolerance: 11μm ■Surface roughness: Ra1.6 or less *For more details, please refer to the PDF document or feel free to contact us.

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By combining motion control and back pressure control using a servo press, we were able to reduce a process that traditionally took three steps into just one step. As a result, we significantly reduced mold costs and achieved a reduction in product costs. Please feel free to contact us when you need assistance. 【Features】 ■ Utilization of servo press ■ Optimization of plastic flow through back pressure control *For more details, please refer to the PDF document or feel free to contact us.

• Other Auto Parts

The inner diameter irregular shape is gradually formed in three processes, achieving a surface roughness of Rzmax 8 or less while keeping mold costs down. The inner diameter irregular shape, which cannot be mass-produced through cutting processes, can be formed in one shot using cold forging. Please feel free to contact us when you need our services. 【Features】 ■ Inner diameter surface roughness: Rzmax 8 or less *For more details, please refer to the PDF document or feel free to contact us.

• Engine parts

By optimizing the forming load to the limit, we have achieved the cold forging of disks with eccentric bosses made of high-load alloy steel. Please feel free to contact us when you need our services. 【Features】 ■ Large diameter disk forming of alloy steel (Φ71) ■ Eccentric boss forming *For more details, please refer to the PDF materials or feel free to contact us.

• Other Auto Parts

By increasing the number of key grooves for the locking mechanism, we have improved the assembly efficiency for customers while eliminating uneven loading during molding, thus achieving a longer lifespan for the mold. Please feel free to contact us when needed. 【Features】 ■ Multiple key grooves formed on the outer diameter ■ Extended lifespan of the mold *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

By using a unique floating structure to simultaneously form both the outer and inner diameter gears, we have achieved a sharp gear shape with minimal forging draft. Please feel free to contact us when you need assistance. 【Features】 ■ Simultaneous formation of a ratchet gear on the outer diameter and two sizes of socket gears on the inner diameter. *For more details, please refer to the PDF document or feel free to contact us.

• gear

In machining, shapes that are not suitable for mass production can be made possible through cold forging. Additionally, compared to machining, improvements in yield can lead to a reduction in material costs. 【Features】 ■ Gear accuracy: JIS Grade 6 or lower JIS-B1702 (1976) *For more details, please refer to the PDF document or feel free to contact us.

• gear

This product can achieve a reduction in processes, improved precision, and cost reduction by integrating two parts into one through cold forging. Our company handles everything from forging to machining to plating, so please feel free to contact us when you need assistance. 【Features】 ■ Improved precision after machining due to integrated forging ■ Machining inner diameter tolerance range: 0.02mm ■ Intermittent cutting of irregular shapes *For more details, please refer to the PDF document or feel free to contact us.

• Solenoid Actuators

By using hot forged materials, we have made it possible to shape irregular forms, which is a weak point of cold forging. There is no need for a draft taper like in hot forging. This is a forging method that combines the high precision of cold forging with the irregular shapes of hot forging. 【Features】 ■ Since a cold forging process is involved, there is no need for a draft taper like in hot forging. *For more details, please refer to the PDF document or feel free to contact us.

• Engine parts

We propose accurate estimates by predicting the stress and surface pressure on the mold in advance using analysis software for cold forging. Please feel free to contact us when you need our services. 【Features】 ■ Reduction of trial and error in prototyping ■ Shortening of development time ■ Advance prediction of burrs and drooping *For more details, please refer to the PDF materials or feel free to contact us.

• Other analyses

This product accommodates shapes from coil material S45C to the one shown in the photo. By finishing hollow and outer peripheral splines and outer peripheral hexagonal shapes through forging, we aim to reduce machining time and improve productivity. 【Features】 ■ Gear accuracy: JIS Grade 6 or lower JIS-B1702 (1976) ■ Process shortening through simultaneous forming of splines and hexagonal shapes *For more details, please refer to the PDF document or feel free to contact us.

• shaft

The product is shaped from SUJ2 material bar stock without cutting. By eliminating cutting, it is possible to improve yield. Additionally, cold forging has higher productivity compared to cutting processes, allowing for cost reduction. 【Features】 ■ Coaxiality: Φ0.1 or less ■ Outer diameter tolerance range: 0.06mm ■ Maximum surface roughness: Rz25 or less *For more details, please refer to the PDF document or feel free to contact us.

• Engine parts

When forming shapes like the one in the image, conventional technology required a 1000-ton class transfer press with three processes. However, with our special 630-ton servo press, it is possible to shorten the process that traditionally took three steps into one step through the control of processing speed and back pressure during forming. This significantly reduces mold costs and achieves a reduction in product costs. 【Features】 - Forming with control of processing speed and back pressure - Ability to shorten the process that traditionally took three steps into one - Significant reduction in mold costs, achieving lower product costs - Received the "2012-13 MF Technology Award" from the Japan Forging Machinery Manufacturers' Association *For more details, please refer to the PDF materials or feel free to contact us.

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• Other machine elements

Fiber flow (forging flow lines) refers to the fibrous flow of metal structure observed when forging metal materials. Our company conducts observations of the metal structure due to fiber flow for each product to confirm whether the structure is flowing appropriately. Fiber flow that aligns with the shape of the forged product increases impact value and fatigue strength, and by following the surface contour, it becomes resilient against tensile stress that occurs on the surface. [Effects of Fiber Flow] ■ Fiber flow aligned with the shape of the forged product increases impact value and fatigue strength. ■ By following the surface contour, it becomes resilient against tensile stress that occurs on the surface. ■ By increasing the forging process, it is possible to forge from multiple directions. ■ It is also possible to create components while preserving the fiber flow without cutting it. ■ By performing dimensional shaping through forging, in some situations, the forged product itself can be used as a stronger material. *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements

A servo press is a press machine that controls the movement of the pressurizing side using a servo motor, enabling complex pressurization methods. It is possible to set parameters such as speed, position, and pressing force during processing using CNC. Additionally, our machine is equipped with a servo motor on the knockout side, which allows for back pressure (die cushion pressure) to be applied during molding. 【Features】 ■ Controlled Speed Forging - Movement of the pressurizing side is controlled by a servo motor - Reduces pressurizing heat, improving accuracy - Increases product thickness accuracy through speed control near the bottom dead center ■ Material Flow Control Forging - Applies back pressure (die cushion pressure) during molding - Facilitates the molding of non-ductile materials - Capable of molding complex flows *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
• Processing Contract

Forging is a type of metal processing that involves shaping metal materials by hammering or pressing them into various forms. It is classified into three types based on the temperature during the forming process: cold (room temperature), warm (600–900°C), and hot (900–1250°C). Our company employs "cold forging" using a press machine. By using cold forging technology to create "integral shapes" from parts that have been joined through welding, crimping, or fitting, we can enhance the strength and reliability of the components. 【Types of Forging (Partial)】 ■ Cold Forging - Processing temperature is at room temperature (20–30°C) - Capable of forming with higher precision in dimensions and surface accuracy than warm or hot forging - Reduces the need for cutting processes - Aims for cost reduction of products *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
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We have achieved high functionality and added value for our products through our unique technologies, such as high dimensional accuracy, deep drawing, and integrated molding of composite parts, receiving high praise for our efforts. In particular, our method is effective for the production of metal components that require high strength, which is impossible with sheet metal forming. By using cold forging technology for near-net shaping and performing cutting processes, we can realize resource conservation. This allows for material reduction, leading to cost savings!

• Other machine elements

"Cold forging technology" is a technique that enables high dimensional accuracy, deep drawing, and the integration of complex components, allowing for the enhancement of product functionality and added value. It achieves cutting-free processes and material reduction with near-net shape results. When challenging new methods, we conduct diagnostics not only on appearance and dimensions but also through fiber flow analysis to ensure proper forming. We are committed to high-quality management by obtaining the globally recognized IATF16949 certification. [Achievements] ■ Electromagnetic clutch components ■ Steering components ■ Shock absorber components ■ Suspension components ■ Brake components ■ Seat components ■ Mechanism components ■ Speaker components, etc.

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