Broken tap removal and deburring processing | Fine hole discharge and shape engraving discharge
Before giving up on parts due to tap breakage. We will consider a method for removing broken tools that minimizes damage to the threads using small hole discharge and shape cutting discharge.
At Hanshin Seiko, we offer the removal of broken taps and reworking through fine hole electrical discharge machining and shape engraving electrical discharge machining. If you have a situation where "the tap broke deep inside the screw hole," "it's too hard to drill," or "the extractor has broken off," please consult us for assistance with molds, jigs, and precision parts that are in the processing stage. We will check the size, material, position, and depth of the broken tool, and consider the size and shape of the electrode, positioning, and discharge conditions. We will select methods that minimize damage to the surrounding threads and base material, such as removing the center of the tap and extracting the remaining fragments. After removal, we will check the condition of the screw hole and consult on the necessity of additional processing or repairs if needed. Please provide us with a photo of the broken area, the tap size, the material of the base, the work dimensions, and your desired delivery date. *Please note that processing may not be possible depending on the state of the breakage. We do not guarantee that the threads will remain undamaged or that the part can be reused after removal.
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basic information
Processing details: Broken tap removal, tap re-threading, broken tool removal Processing methods: Fine hole electrical discharge machining / Shape electrical discharge machining Method selection: Consideration based on tool material, size, and breakage condition Verification conditions: Screw size, depth of breakage, distinction between through holes and blind holes, base material properties, workpiece dimensions and shape, installation and fixing conditions Adjust the electrode diameter, electrode shape, processing position, and discharge conditions, taking into account the relationship between the remaining screw threads and the removal area. *The compatible screw sizes and depths are not uniform. We will confirm the feasibility of processing based on photos, drawings, and the condition of the actual item.
Price information
This is a customized estimate. The cost varies depending on the size and material of the tool, the depth of the cut, the condition of the base material, the number of removal points, and the setup conditions. We will review photos and drawings and provide guidance after confirming the actual items if necessary.
Delivery Time
※We will check the drawings, quantities, setup conditions, and equipment operating status, and provide individual guidance. Please let us know the planned delivery date for materials and parts, as well as your desired delivery date.
Applications/Examples of results
【Troubles You Can Consult About】 - A broken tap inside a screw hole - A broken small-diameter tap - Removal of hard tool materials like high-speed steel - A tap left deep in a blind hole or deep hole - A situation where an extractor has additionally broken - Removal of broken tools such as drills 【Examples of Target Parts】 Parts such as molds, jigs, and precision components that are in the processing stage and for which you want to consider relief through the removal of broken tools. *The above are examples of consultation subjects. The feasibility of processing may vary depending on the condition of the tools and base materials, the proximity of the electrode, and the installation conditions of the workpiece. It may also be necessary to repair the screw hole after removal.
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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