都留 List of Products and Services

We handle all types of surface treatments, including buff polishing, painting, silk printing, plating, hairline processing, electro-polishing, anodizing, and acid cleaning! We support mass production and short delivery times with stainless steel and iron sheet metal processing, laser and punch composite processing, turret punch processing, fiber laser welding, automatic TIG welding, TIG robot welding, and NC stud welding. Our main industries include semiconductor manufacturing equipment, medical devices, kitchen equipment, food machinery, and lighting equipment manufacturers. Our strength lies in the welding of stainless steel sheet metal. We minimize distortion when welding thin sheet covers using a fiber laser welder. For boxes, cases, and enclosures, we perform speedy processing with a dedicated TIG vertical automatic welding machine. We are known for our clean welds and beautiful finishes. Our preferred size is below 500×500×500.

• Other machine elements
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• stainless

The blank process (laser punch composite processing machine, turret punch processing) operates 24 hours a day, achieving short delivery times and advanced precision sheet metal processing. It demonstrates effectiveness from medium production to mass production lots. 【What's Amazing Here!】 ◆ Achieved approximately 30% improvement in productivity and about 40% reduction in lead time compared to conventional methods. ◆ Laser and punch composite processing allows for free-form shapes and accommodates small lots. ◆ We have multiple CAD/CAM systems, enabling quick program creation, aiming for the shortest time from CAD data to finished product. ◆ We respond swiftly from prototypes to mass-produced items! *You can download the inquiry sheet from the catalog download section. ■□■□■□■□■□■□■□■□■□■□■□■□ ＝＝＝＝＝ Please contact us for more details =＝＝＝＝

• Processing Contract

11 Points on Stainless Steel ◆ Points for Welding According to Application ◆ ≪Do you understand the points for welding according to application?≫ For example... - Medical, kitchen equipment, semiconductor manufacturing equipment → Scratches are a no-go, fine processing is required - Factory, mass production → Fine processing that takes time by hand is not needed - Construction, building components → Durability is required ≪Let's understand the types of welding and their characteristics≫ - TIG Welding Advantages: No sparks, no spatter, fine welding is possible Disadvantages: Can be addressed in post-processing, but tends to cause burn marks - CO2 Welding Advantages: Fast processing is possible Disadvantages: Not suitable for fine parts - Arc Welding Advantages: Ensures the strength of the welded parts Disadvantages: Depends on the skill of the operator - Fiber Laser Welding Advantages: Fast processing is possible. Deep penetration ensures strength with low distortion Disadvantages: The laser beam is thin, so it won't attach if there are gaps in the sheet metal.

• Processing Contract
• Surface treatment contract service

11 Points on Stainless Steel ◆ Point 1 of Bending Processing: Preventing Bending Marks and Ensuring Angle Accuracy ◆ ≪Do you have these concerns during bending processing?≫ "I experience bending marks during the bending process." "The product surface gets scratched by molds like Yagen." "I want to achieve high-precision bending for medical devices and heating equipment." ≪Solution 1≫ - Utilize protective sheets (thin protective sheets of about 3/100 to avoid affecting precision) ≪Solution 2≫ - When determining angles, simulate the elongation, distortion, and stress according to the material, plate thickness, and bending shape to enhance processing accuracy. *This process of achieving precision is very difficult, so it is important to select an experienced processing contractor. *Recent bending machines support bending from the first piece without trial bends due to the incorporation of angle sensors, and we have also adopted this. This reduces material loss and contributes to shorter lead times.

• Processing Contract
• Surface treatment contract service

11 Points on Stainless Steel ◆ Point 2 of Bending Processing: Arc Bending ◆ ≪Is the purpose of arc bending clear?≫ For example... - Prototyping → Speed is prioritized - Machine parts → Complex processing - Architectural components → Want to mass-produce In this way, clarifying the points to prioritize according to the application is key to arc bending. ≪It is important to understand the advantages and disadvantages of bending methods suitable for the prioritized points before requesting processing from a manufacturer.≫ - Three-Roller Advantages: Can bend quickly, finishes beautifully without unevenness Disadvantages: Size limitations, results may vary based on the craftsman's experience - Bender Advantages: Capable of complex and difficult processing Disadvantages: Prone to bending marks, relatively time-consuming processing - Mold Advantages: Suitable for mass production, can reduce costs if a mold is available, finishes beautifully without unevenness Disadvantages: If there is no mold, the cost-effectiveness of procurement varies depending on the lot size.

• Processing Contract
• Surface treatment contract service

11 Points in Stainless Steel ◆Points for Bending Processing 3: Step Bending◆ ≪Are you facing these problems with step bending?≫ “Despite the precision required for step bending, bending occurs in the window (hole) area.” “Step bending causes a decrease in precision, such as the expansion of the window hole area and the height of the window side.” “When there are many steps in step bending, the yield rate decreases.” ≪Solve it by changing the processing steps!≫ - For the material in the window hole area, leave the corners before the step bending stage and create an opening, then perform the step bending before completely cutting out the window. After the bending process, completely cut out the window. This way, you can maintain the precision of the height of the window side, etc.

• Processing Contract
• Surface treatment contract service

11 Points on Stainless Steel ◆ Points for Laser Processing ◆ ≪Do you have any concerns regarding laser processing?≫ "Scratches from spatter during piercing" "Backside scratches from rebound" ≪Solve it with precise design of assist gas!≫ To prevent scratches caused by spatter scattering, adhesion, and rebound during laser piercing, cutting, and other processing, the assist gas that is injected simultaneously with the laser can be finely adjusted according to the material, size, and other characteristics of the item being processed. *Adjusting the assist gas is very difficult, so it is important to choose an experienced processing contractor who has a wealth of experience with various customers.

• Processing Contract
• Surface treatment contract service

11 Points on Stainless Steel ◆Deburring◆ ≪Issues with Burr Residue≫ - Burr residue decreases product safety (can cause injuries by snagging) - In the case of kitchen equipment, burrs can accumulate dirt, compromising hygiene - During the bending process, hitting the back gauge can lead to incorrect bending dimensions As such, burr residue causes various issues not only affecting product precision but also safety and hygiene. ◆Points for Deburring◆ - Be careful not to leave any burrs during processing - Choose the grit of the sander according to the degree of processing and the intended use of the product ◆Utilization of Deburring Machines◆ - The latest machines can perform R-edge finishing - Edge finishing can be done quickly - Processing quality improves, resulting in uniformly R-edged products - Workers are freed from the 3K (dirty, dangerous, and difficult) jobs - Increased productivity—over ten times more efficient than manual work - Improved anti-rust effect for painting—R-edged products allow paint to adhere well - Improved anti-rust effect for plating—uniform edge finishing often results in beautiful plating *Our company uses the AuDeBu series of deburring machines from Authentec.*

• Processing Contract
• Surface treatment contract service

11 Points on Stainless Steel ◆ Points for Material Selection ◆ ≪Choosing Stainless Steel Materials Based on Application≫ - Each type has different properties such as durability, elasticity, fire resistance, and ease of processing, so the choice varies depending on the application. ≪The Thickness of the Material is as Important as Its Characteristics≫ - Depending on the intended use of the processed stainless steel sheet metal products, it is necessary to choose a processing contractor. - There are differences in the thicknesses that processing contractors specialize in and can handle. ≪It is Important to Confirm the Available Thicknesses and Choose the Right Processing Contractor≫ - It is crucial to select a processing contractor who can propose the optimal material selection according to your company's needs. ≪For Kitchen Equipment, Medical Devices, and Automotive Parts…≫ - Excellent corrosion resistance, high weldability, and capable of complex processing 【SUS304】【SUS316】 ≪For Building Materials, Structural Materials, and Chemical Plants…≫ - Resistant to corrosion, high strength, and formability 【SUS430】

• Processing Contract
• Surface treatment contract service

◆Buff Polishing Service◆ "I want to finish stainless steel products and parts beautifully, like a mirror!" At 【Stainless Steel Sheet Metal . COM】, we offer buff polishing services, including the following buff finish equivalent to #400 and hairline processing. ≪Beautiful stainless steel without scratches! Standard buff polishing≫ - We polish away fine scratches and welding marks that occur during processing, bringing out the beautiful surface that stainless steel inherently possesses. ◆Please contact us first◆

• Processing Contract
• Surface treatment contract service

11 Points on Stainless Steel ◆ Points for Turret Punch Processing ◆ ≪Do you have these concerns?≫ "I have seams appearing when using an NC turret punch press (turret punch)." "Unlike laser-processed products, notches are occurring." ≪Eliminating Notches with 'Seamless Processing' as a Solution≫ To address notches, seamless processing can be achieved by using a slotted die for a follow-up processing method, resulting in a product without seams, or 'seamless processing.'

• Processing Contract
• Surface treatment contract service

We provide spot welding processing, which has traditionally been difficult, with our skilled technology and cutting-edge IT technology, ensuring short delivery times and high quality. 【What’s amazing here!】 ◆ We have four spot welding machines, allowing us to perform spot processing from small parts to enclosures. ◆ We use high-speed power spot welding machines and table spot welding machines according to the application. ◆ Even in areas that are usually difficult to spot weld, we have a wide variety of tips (electrodes) available to respond accurately. ◆ We manufacture jigs and simple molds in-house to make work easier and improve efficiency. Leveraging our long experience in handling kitchen equipment, semiconductor equipment, cleanroom equipment, and medical devices, we achieve a clean finish. *An inquiry sheet can be downloaded from the catalog download. ■□■□■□■□■□■□■□■□■□■□■□■□ ＝＝＝＝＝For more details, please contact us＝＝＝＝＝

• Processing Contract

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11 Points in Stainless Steel ◆ Points Before Processing, Program Points ◆ ≪Selection of Processing Contractors with Strong Understanding of Drawings and Proposal Skills, and Conducting Thorough Meetings≫ Selection Points - Emphasizing meetings to prevent discrepancies due to lack of communication between the ordering party and the contractor, and providing estimates after thoroughly reviewing the drawings. - Proposing alternative solutions after discussions on difficult aspects. ≪Utilizing CAD Data≫ - Products before assembly may have low finishing accuracy, leading to issues such as inability to assemble or causing failures. To improve accuracy, it is essential that the intent of the ordering party's designers is clearly communicated to the processing contractors. - By utilizing CAD data, it becomes possible to smoothly achieve understanding of drawings and receive design proposals from processing contractors.

• Processing Contract
• Surface treatment contract service

11 Points on Stainless Steel ◆ Inspection Points Before Shipment ◆ ≪Inspection Based on Lot Number≫ - Conduct pick inspections according to the lot number to improve yield. - Have a third party perform the final check to prevent mistakes due to assumptions. - Confirm the inspection system before placing an order. ≪Thorough In-Process Inspections≫ - For processing that involves multiple steps, conduct detailed checks before moving to the next process. - Ensure thorough inspections after each process until the product is in a shipping-ready state. ◆ It is also important to confirm the inspection system of the processing company before placing an order. ◆

• Processing Contract
• Surface treatment contract service

11 Points on Stainless Steel ◆ Points for Transportation, Packaging, and Shipping ◆ ≪ To avoid scratches and dents during transportation and packaging, as well as time loss during shipping... ≫ - It is important to select processing companies that can provide packaging and transportation suited to the intended use and can explain the packaging during post-shipment discussions. - Choose processing companies that ship using their own delivery trucks.

• Processing Contract
• Surface treatment contract service