A stop screw hole with a depth of 6.5mm and M1.6 size is created in SUS304. The machining chips are repeatedly removed to maintain the discharge state all the way to the bottom of the hole.
At Hanshin Seiko, we accept consultations for machining extremely small screw holes and blind screw holes using shape-cutting electrical discharge machining. The case presented involves machining four blind screw holes of M1.6 with a depth of 6.5mm in a SUS304 component. We processed the screw shape deep into the small holes that do not go through. A key aspect of this case was the removal of machining debris (sludge) that accumulates near the bottom of the hole. We repeatedly removed the sludge as the machining progressed and adjusted the discharge state to continue the machining process. Please consult us about machining small screw holes that are difficult to process with cutting, as well as screw machining for parts that cannot be penetrated. We will also consider the feasibility of screw hole machining in carbide based on material type, screw size, depth, and required precision. Along with the drawings, please provide the material, hardness, screw size and pitch, required screw depth, depth to the bottom of the hole, quantity, and desired delivery date.
Inquire About This Product
basic information
【Processing Conditions for Published Example】 Material: SUS304 (Stainless Steel) Screw Size: M1.6 Processing Depth: 6.5mm Hole Shape: Blind Hole (Non-through) Processing Locations: 4 places Processing Method: Sinker EDM (Electrical Discharge Machining) Process Innovations: Repeatedly removing sludge that accumulates at the bottom of the hole and managing the discharge state. *6.5mm is the processing depth stated in the article. The effective screw depth and the depth to the bottom of the hole will be distinguished and confirmed in the drawings. Screw pitch, tolerances, and inspection conditions will be individually confirmed for compatibility.
Price information
This is an individual estimate for each drawing. We will confirm the material, hardness, screw size, pitch, required screw depth, depth to the bottom of the hole, number of processing locations, quantity, and details of electrode production to provide the estimate.
Delivery Time
※We will check the screw shape, processing depth, number of locations, quantity, preparation of electrodes, and equipment operating status, and provide individual guidance. Please consult us with your desired delivery date.
Applications/Examples of results
【Processing Achievements】 We manufactured four blind screw holes with a diameter of M1.6 and a machining depth of 6.5mm in SUS304 parts. This is an example that combines shape electric discharge machining with repeated sludge removal. 【Processing Services Available for Consultation】 - Micro screw hole machining in SUS304 - Blind screw hole machining for parts that cannot be penetrated - Machining of small-diameter, deep screw holes - Screw shape machining for materials that are difficult to process by cutting - Consideration of screw hole machining feasibility in carbide materials *This is a contract processing service based on drawings, not the sale of standard parts.
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/
![[MECT2025 Actual Machine Exhibition] Molybdenum Wire Electrical Discharge Machining Machine](https://image.mono.ipros.com/public/product/image/2065685/IPROS68013622882014238.jpg?w=280&h=280)
