Machining the tooth profile of a ring gear on a semicircular material with an outer diameter of φ1000mm. Utilizing a unique dedicated jig and five setup steps to accommodate positioning that connects the machining areas.
At Hanshin Seiko, we accept consultations for machining large diameter ring gears and arc-shaped components using wire cut electrical discharge machining. The case presented involves machining a ring gear tooth profile on a half-circle material made of SUS304. The material dimensions are an outer diameter of φ1000mm and an inner diameter of φ950mm, with a total of 656 teeth calculated around the circumference. Since the machining stroke of the machine could not accommodate the entire part, we divided the machining range and processed it in five setups. Using our unique dedicated jigs, we adjusted the position and alignment each time we changed the setup. We ensured that the tooth position, orientation, and the continuity of the arc matched between the previously machined area and the next area. The key point of this case is the setup that considers each tooth profile and the positional relationship of the entire component. For parts that cannot be machined in one setup, we will review the shape, required precision, and holding methods to consider appropriate responses. Please provide the material, outer diameter, inner diameter, plate thickness, tooth profile specifications, required precision, quantity, and desired delivery date along with the drawings.
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basic information
【Processing Conditions for Published Case Studies】 Material: SUS304 (Stainless Steel) Material Shape: Half Circle Material Dimensions: Outer Diameter φ1000mm, Inner Diameter φ950mm Processing Details: Tooth profile machining of a ring gear Number of Teeth: Equivalent to 656 teeth around the entire circumference Processing Method: Wire cut electrical discharge machining Setup: Processed in 5 stages Used Tooling: Proprietary dedicated tooling developed in-house Management Items: Position and alignment after setup changes, connection between tooth profile and arc *This is a processing case for half-circle material. It is not an achievement of processing a complete ring in one go. The feasibility and accuracy of processing will be confirmed based on dimensions, weight, shape, and holding conditions.
Price information
This is an individual estimate for each drawing. We will confirm the material, outer diameter, inner diameter, plate thickness, tooth shape specifications, required tolerances, quantity, setup times, and details of jig production before providing the estimate.
Delivery Time
※We will confirm and inform you about the processing steps, equipment operating status, including tooth shape, dimensions, quantity, preparation of jigs, and changeover. Please let us know the scheduled supply date and desired delivery date.
Applications/Examples of results
【Processing Achievements】 A half-circle material made of SUS304 (outer diameter φ1000mm, inner diameter φ950mm) was processed into a ring gear shape with a total of 656 teeth. This is an example where the processing range was connected using a dedicated jig over five setups. 【Processing Consultations Available】 - Tooth profile processing for large diameter ring gears - Wire cutting of arc-shaped parts - Processing of large parts involving set changes - Processing that requires alignment at the junction of the processing range - Process consideration for parts that cannot be processed in a single setup *This is not the sale of standard gears, but a contract processing service based on drawings.*
Company information
Hansei Seiko Co., Ltd. is a precision metal processing company founded in 1948, based in Kobe City, Hyogo Prefecture. We offer integrated processing services centered around wire cut electrical discharge machining, shape electrical discharge machining, and fine hole electrical discharge machining, as well as machining, polishing, finishing, and measurement. We welcome inquiries for precision parts, mold components, jigs, test pieces, and more, whether for single items, prototypes, or small lots. In addition to processing hardened steel, carbide, and stainless steel, we also handle contour machining of thick parts, key grooves, fine slits, and complex shapes. We confirm material, shape, required precision, and application, and consider processing conditions and processes. This reduces the burden of arranging multiple processing locations and supports part manufacturing. Based on the principle of "making according to the drawings," we conduct inspections and measurements in-house to confirm the finish before shipping. Based in Kobe and Hyogo, we accept processing inquiries and quotation requests from across the country. If you have parts you are struggling to process or drawings for which you would like to consider methods and processes, please feel free to consult with us. https://www.hansei.co.jp/
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