高洋電機 List of Products and Services

Here is an introduction to a case study of fine processing of molybdenum. Molybdenum, like tungsten, is a high melting point material and has similar properties. Compared to tungsten, its performance is slightly lower (melting point: 2620°C), and as a result, it is known as a cost-effective alternative. Among high melting point materials, it has good machinability, allowing for plastic processing and welding, and complex shapes can be machined without issues in cutting. 【Case Overview】 Material: Molybdenum 1600 holes of Φ0.2, depth 1mm Sample processing It expresses the logo of Koyo Electric. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

The sleeve (hard turning process) is a component that guides the outer part of the section where the measuring terminal moves. A cylindrical tolerance of 2 microns for the inner diameter is required to enable precise measurements. The material is stainless steel 440C, hardened to HRC60 or above through vacuum hardening. After heat treatment, the outer diameter is first finished using centerless grinding. With an outer diameter of 7mm and a dimensional tolerance of 12 microns, coaxiality between the inner and outer diameters requires 4 microns, so the inner diameter is processed based on the outer diameter after finishing it. The inner diameter of 5mm is turned with a precision of 10 microns and a cylindricality of 4 microns, and in the final finishing, honing is performed to achieve a precision of 4 microns and a cylindricality of 2 microns. 【Features】 ■ A component that guides the outer part of the section where the measuring terminal moves ■ Made of stainless steel 440C, hardened to HRC60 or above through vacuum hardening ■ Outer diameter of 7mm with a dimensional tolerance of 12 microns ■ Inner diameter of 5mm turned with a precision of 10 microns and a cylindricality of 4 microns ■ Monthly production record of 5,000 units, capable of handling up to 100,000 units *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines

Do you have any of these concerns? "I can't process difficult-to-cut materials." "They can't accommodate mass production." "I want high-precision processing, but I can't find a contractor." At Koyo Electric Co., Ltd., we pursue precision processing (±3μ), difficult-to-cut materials, rare materials, complex shapes, and aesthetically pleasing processing. We have numerous achievements with difficult-to-cut materials such as tungsten, nickel alloys, nickel, and tantalum! We will respond using machining, NC lathe processing, 5-axis processing, and grinding. 【Features】 ■ Processing of difficult-to-cut materials (tungsten, nickel alloys, platinum, pure silver) ■ High-precision processing (diameter accuracy ±3μ, roundness 1μ, flatness 2μ, surface accuracy 0.4Ra) ■ Accommodates mass production (from 10 to 10,000 pieces) If you have any other concerns regarding metal processing, please feel free to contact us! *For details of the case studies, please view the PDF available for download.

• Processing Contract

The process of performing grinding-level machining through turning is called "hard turning." Pistons used in hydraulic systems for construction machinery require extremely high precision, with outer and inner diameter tolerances of ±2 microns, surface roughness of Ra0.4 microns, coaxiality of inner and outer diameters of 3 microns, and perpendicularity between the end face and outer diameter of 3 microns as the required specifications. At our company, after heat treatment, we simultaneously machine the outer diameter, inner diameter, and both end faces using NC lathes, achieving machining equivalent to grinding through turning. By consolidating four processes into one, we enable process shortening and cost reduction. Additionally, simultaneous machining allows us to guarantee the coaxiality of the outer and inner diameters and the perpendicularity to the end face. We have a shipping record of 10,000 units per month and can accommodate orders of up to 100,000 units. *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

"MAT21" is a brand steel from Hitachi Metals, offering corrosion resistance that surpasses Inconel and Hastelloy, particularly in high-temperature environments. Currently, the semiconductor manufacturing equipment industry is focusing on this metal. It possesses greater resistance than Hastelloy and Inconel against high-purity hydrogen fluoride and chlorine-based gases and solutions required for semiconductor manufacturing. While Hastelloy is a representative of difficult-to-machine materials, MAT21 is even more challenging to machine. Our company has already established processing know-how and is prepared for mass production, currently capable of producing several thousand units per month. Naturally, this processing know-how can also be applied to Inconel and Hastelloy. *For more details, please refer to the PDF document or feel free to contact us.*

• alloy

We would like to introduce an example of fine hole machining of the representative difficult-to-machine material Hastelloy C276. In lathe processing, holes are drilled from both sides by 20mm each, resulting in a 0.2mm hole that is 40mm deep. The relationship between hole depth and diameter is expressed as L/d, where L is the depth and d is the diameter. Normally, an L/d of 10 is already considered difficult, but in this case, it is L/d 200. Since we use a 0.2mm drill, it is usually too thin and prone to breaking or bending. Additionally, if the center is even slightly misaligned, the holes will not connect, but our company can drill them straight. 【Case Overview】 ■ Material: Hastelloy C276 ■ Processing Details: 0.2mm hole drilled through 40mm ■ Hole Depth / Diameter: L/d 200 *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Here is an example of a nozzle for glass equipment that has undergone fine processing with platinum. When glass is heated and refined, it tends to absorb metallic components, but platinum has the least absorption. The outer diameter of the shaft is φ0.2mm, which is less than half the thickness of a mechanical pencil lead (0.5mm). The tip has a hole with an inner diameter of φ0.15mm, and the wall thickness is 0.025mm. If you imagine a thickness less than one-third of a regular mechanical pencil, you can understand how small it is. Additionally, the φ0.15mm section is about 3mm long and connects to a φ1mm hole on the opposite side. Our company can also enhance the surface roughness of the inner surface through polishing. [Case Overview] ■ Nozzle Shape ■ Outer Diameter 0.2mm, Inner Diameter 0.15mm, Wall Thickness 0.025mm ■ Through hole of 1mm on the opposite side *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We would like to introduce a case of high-precision mass production processing of pure tungsten. The inner diameter of φ6 has a precision of ±3μ and roundness of 1μ, achieved solely through turning, without any grinding. The surface roughness of the side of the inner diameter is 0.4ra, and the surface roughness of the bottom surface is 0.6ra. Particularly for the bottom surface, where the machining speed at the center becomes zero, the surface roughness tends to be rougher, yet it still maintains a surface roughness of 0.6ra. Our specialty is to eliminate grinding to provide cost benefits. 【Case Overview】 ■ Processed only by lathe ■ Inner diameter φ6 precision: ±3μ, roundness 1μ ■ Surface roughness of the side of the inner diameter: 0.4ra ■ Surface roughness of the bottom surface: 0.6ra ■ Flatness is 2μ, resulting in a nearly flat finish *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

This product is a standard hex socket bolt made of pure tungsten, using materials made in Japan, and comes with a quality guarantee based on a screw gauge. While hex head bolts and those tightened with a flat screwdriver are common, this one features a hex socket design that makes it easier to tighten. Additionally, it is available for individual sale. The standard sizes range from M3 to M8, with screw lengths from 6mm to 35mm, and we can accommodate sizes beyond these as well. 【Features】 ■ Made of pure tungsten ■ Uses materials made in Japan ■ Comes with a quality guarantee based on a screw gauge ■ Standard sizes range from M3 to M8, with screw lengths from 6mm to 35mm available ■ Can also accommodate materials such as molybdenum, tantalum, niobium alloys, and Inconel *For more details, please refer to the PDF document or feel free to contact us.

• bolt

We would like to introduce three strengths of Koyou Electric Co., Ltd. They are mass production processing, difficult-to-cut material support, and high-precision and fine processing. We can handle a wide range of processing sizes from φ3 to 220, and in addition to general steel materials, we can also accommodate difficult-to-cut materials. We are capable of processing nozzles with an outer diameter of φ0.2mm and an inner diameter of φ0.15mm in platinum. For mass production processing, we handle automotive parts, industrial equipment, locks, motorcycles, semiconductor manufacturing equipment, and more. 【Difficult-to-Cut Materials We Can Handle】 ■ Tungsten, Molybdenum, Tantalum, Niobium ■ Hastelloy, Inconel, Permalloy, 42 Alloy ■ Kovar, Super Invar ■ Platinum, Pure Silver, Pure Nickel, Pure Copper ■ Resins such as PEEK, Polyimide, and Paper Phenol *For more details, please refer to the PDF document or feel free to contact us.

• Other metal materials

Features of MAT21 ⇒ High corrosion-resistant nickel-based alloy - A new alloy that enhances resistance to localized corrosion by adding Ta to Ni-Cr-Mo based alloys - Pitting corrosion onset temperature (°C) max 150°C - Strong resistance to pitting, crevice corrosion, and corrosion at welded joints - Excellent corrosion resistance in non-oxidizing sulfuric acid and hydrochloric acid solutions

• Other semiconductor manufacturing equipment

We sell pure tungsten, which is a difficult material to work with, starting from one cap screw bolt. Characteristics of tungsten: - High melting point (the highest among metals at 3622°C) - High density (19.3g/cm³, almost equivalent to gold) - Low thermal expansion rate (4.5μm/m·K) - X-ray shielding properties Sizes range from M3 to M8, lengths from 6 to 35mm (size chart available in the catalog). Other sizes can also be accommodated. We can also handle molybdenum, niobium, tantalum, and other materials.

• bolt

At Koyou Electric Co., Ltd., we pursue precision machining (±3μ), challenging materials, rare materials, complex shapes, and aesthetically pleasing processing. We work with difficult-to-machine materials such as tungsten, molybdenum, kovar, nickel, and tantalum! Utilizing machining, lathe processing, grinding, tapping, and external threading! 【Content included in the materials (a portion is introduced)】 ■ Processing examples of pure tungsten (purity: 99.95%) - M3 screw processing - wall thickness 0.2mm - hexagonal hole processing, etc. ■ Processing examples of pure molybdenum ■ Processing examples of kovar ■ Processing examples of pure nickel ■ Other examples of difficult-to-machine materials, etc. *For detailed examples, please refer to the PDF available for download.

• Processing Contract

Even the difficult-to-process "tungsten," which has "high melting point," "high hardness and wear resistance," and "high specific gravity," can be processed with the achievements and technical capabilities of Koyou Electric. 【Features】 ■ Difficult-to-machine material - Machining of pure tungsten - Typically processed by grinding, electrical discharge, etc. ■ High precision - Diameter accuracy ±3μ, roundness 1μ - Surface roughness inner diameter side 0.4Ra, surface roughness inner diameter bottom 0.6Ra ■ Mass production processing - Mass production record of 8,000 pieces/month - Experience in processing M3 to M6 screws *For more details, please refer to the PDF document or feel free to contact us.

• Other metal materials
• Processing Contract

Koyo Electric Co., Ltd.'s "Hard Turning Processing" is a machining technology that performs cutting on hardened steel with a hardness of around HRC62, achieving precision at a grinding level (dimensional accuracy/surface roughness). Additionally, by consolidating four grinding processes into one cutting process, we have realized reduced lead times and cost savings. 【Features】 ■ Consolidation of four grinding processes into one cutting process ■ Process integration through simultaneous processing (reduced lead time and cost savings) ■ Guarantee of geometric accuracy (concentricity/perpendicularity) ■ Possible guarantee of approximately 1μ when there are multiple machining locations ■ Capable of handling small to medium lot sizes (30 to 5000 pieces per lot) *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company owns a variety of processing equipment and is capable of handling various types of machining. "Hard turning processing" is performed on hardened steel with a hardness of around HRC62, achieving precision at a grinding level (dimensional accuracy/surface roughness). By consolidating four grinding processes into one cutting process, we have realized a reduction in lead time and cost. Additionally, we also perform machining of "difficult-to-cut materials," including pure tungsten. We have machining experience with molybdenum, Kovar, Inconel, pure nickel, pure silver, and more. 【Features of Hard Turning Processing】 ■ Consolidation of four grinding processes into one cutting process ■ Process integration through simultaneous processing (reduction in lead time and cost) ■ Guarantee of geometric accuracy (coaxiality/perpendicularity) ■ If there are multiple machining locations, a guarantee of approximately 1μ is possible ■ Capability to handle small to medium lot sizes (30 to 5000 pieces per lot) *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Since our founding in 1951, our company started with five lathes and has lived in the world of manufacturing for many years. Today, we have grown to meet the demands of a wide range of industries, including locks, automobiles, motorcycles, bearings, industrial equipment, bicycles, office equipment, and medical devices. We have actively implemented the introduction and enhancement of advanced machinery in response to technological innovations, as well as improvements in production capacity, rationalization, efficiency, and work environment. As a result, we have been honored with the designation of a model factory for small and medium-sized enterprises by the Small and Medium Enterprise Agency. We anticipate that the surrounding environment will continue to change day by day, but we will strive to improve our technology and humanity, maintain a spirit of gratitude towards those we are connected with, and contribute to the development of our region and Japan. 【Business Activities】 ■ Processing of difficult-to-cut materials such as pure tungsten and Inconel ■ Comprehensive manufacturing from pressing, riveting, assembly, to product packaging *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

At Koyou Electric Co., Ltd., we combine various processing methods centered around cutting processing to carry out integrated production up to the finished product. By leveraging know-how gained from multiple industries, we propose processing methods that provide benefits to our customers. We have established a TPM (Total Product Maintenance) room to enhance our capabilities, including the introduction of advanced machinery through comprehensive planning, and we have adopted a system that can respond to customer requests for Q.C.D. We handle comprehensive manufacturing, from machining difficult materials such as pure tungsten and Inconel to pressing, riveting, assembly, and product packaging. 【Product Information】 ○ Electromagnetic micro clutch and brake units ○ Flat motors and brushless motors ○ Electromagnetic detent coil assemblies ○ Reduction gear parts for office automation ○ Automotive parts For more details, please contact us or download the catalog.

• Processing Contract