Hansheng Automation (Dongguan) Co., Ltd. is one of the most experienced manufacturers and suppliers of high-quality wire edm parts in China. If you're going to wholesale bulk cost-effective high-quality wire edm parts made in China, welcome to get pricelist and quotation from our factory. Also, customized service and OEM&ODM service are available.
Why Choose Our Slow-Wire EDM?
When conventional milling and fast-wire EDM reach their physical limits, our high-precision slow-wire EDM process steps in. Designed for ultra-tight tolerances and complex geometries, we help engineers and buyers overcome difficult machining challenges with zero risk of thermal distortion.
Micro-Precision & Tight Tolerances
Achieve dimensional and pitch accuracy within ±0.003 mm (3 microns). Perfect for high-interchangeability mold inserts, punch pins, and micro-mechanical components where millimeter-fraction deviations are unacceptable.
Zero Stress & Distortion-Free
As a non-contact spark erosion process, slow-wire EDM exerts zero mechanical cutting force on the material. This guarantees zero thermal stress, zero micro-cracking, and zero part distortion, making it ideal for fully hardened steels (HRC 58-64), tungsten carbide, and titanium.
Mirror-Like Surface Finish
Multi-pass skim cutting achieves flawless surface roughness down to Ra 0.4 µm (or smoother). This eliminates time-consuming manual polishing or secondary finishing, drastically reducing your assembly friction and extending tool die life.
Complex Geometries & Micro-Slots
Capable of cutting extremely sharp internal radii (down to R0.05 mm), deep narrow slots, complex tapered angles, and thin-wall structures that CNC end mills simply cannot handle due to tool deflection.
Technical Capability Specifications
| Feature / Specification | Capacity & Performance |
| Machine Model | Seibu Wire EDM M50B (Made in Japan) |
| Max. Workpiece Dimensions (W × D × H) | 800 × 650 × 300 mm |
| Max. Workpiece Weight | 800 kg |
| XYZ Axis Travel | 500 × 350 × 310 mm (X / Y / Z) |
| UV Axis Travel | ±60 × ±60 mm |
| Pitch Cutting Accuracy | ±0.003 mm (3 microns) |
| Best Surface Roughness | Ra 0.4 µm (Up to Ra 0.2 µm with ultra-fine passes) |
| Wire Diameter Range | Ø0.10 mm – Ø0.30 mm |
| Max. Taper Angle | ±10° / 100mm |
| Control System | Precision FANUC Series 31i-WB CNC |
Manufacturing Case Study: Precision Die Punch Made from Hardened SKD11 / DC53 Tool Steel
Here is a step-by-step look at how we transform raw SKD11 / DC53 hardened steel (HRC 58-62) into an ultra-precise, long-life stamping punch using our Seibu M50B Wire EDM.
Technical Requirements:
- Component Name: High-Precision Stamping Die Punch & Matrix Insert
- Raw Material: SKD11 / DC53 Cold-Work Tool Steel
- Hardness Level: HRC 58 - 62 (Vacuum Heat Treated)
- Final Dimensional Tolerance: ±0.002 mm
- Surface Finish Achieved: Ra 0.35 µm
- Machining Process: Vacuum Heat Treatment → EDM Hole Drilling → 4-Pass Submerged Wire Cut → CMM Inspection
Step-by-Step Manufacturing Journey
Before wire cutting begins, high-grade SKD11/DC53 stock undergoes vacuum heat treatment and double tempering to achieve HRC 58-62. This guarantees uniform hardness across the part and completely relieves internal material stress, preventing any warping or cracking during the EDM process.
Using a specialized high-speed EDM drill, we process small start holes (Ø0.8 mm) with clean entries and zero micro-burrs. This ensures smooth automatic wire threading (AWF) on our Seibu machine without compromising the metallurgical integrity of the hardened steel block.
- 1st Main Cut (Roughing): High-energy submerged spark cutting removes 90% of excess material swiftly while controlling thermal input.
- 2nd to 4th Skim Passes (Finishing): Progressive low-energy skim passes progressively remove the thin discharge recast layer ("white layer"). This yields an exact profile accuracy of ±0.002 mm and an ultra-smooth Ra 0.35 µm mirror finish-drastically extending the punch's operational lifespan.
Every finished punch undergoes strict quality checks using a Coordinate Measuring Machine (CMM) for pitch and position tolerances, along with a surface roughness tester to verify Ra values. Full inspection reports (FAIR) are provided with every order.
Custom Wire EDM Component Types
Punch & Die Components
Precision Gears & Splines
Medical Device Components
Micro Slotted & Thin-Wall Components
Fixtures & Master Gauges
FAQ
Q: What materials can be processed with your Wire EDM service?
A: Wire EDM can machine any electrically conductive material, regardless of its hardness. We routinely process:
Tool Steels & Stainless Steels: SKD11, DC53, D2, High-Speed Steel (HSS), 304, 316L, 17-4PH.
Hardened Alloys & Carbide: Tungsten Carbide (HRC 65+), Titanium alloys, Inconel, and Hastelloy.
Non-Ferrous Metals: Copper, Brass, Bronze, and Aluminum alloys.
Q: What is the typical lead time for samples and production orders?
A: Prototype/Samples: Usually 3 to 5 business days upon drawing confirmation.
Batch Production: Typically 7 to 14 business days, depending on part complexity, quantity, and surface finish requirements.
Note: With our automated 24/7 Seibu Wire EDM machinery, we offer expedited options for urgent prototype needs.
Q: Is Wire EDM cost-effective for prototype and batch production?
A: Yes! While wire EDM is a precision-focused process, it offers unique cost advantages:
Zero Tooling Costs: Requires no custom cutters, drills, or expensive hard tooling.
Stack Cutting Efficiency: For thin sheet metal or plate parts, we can stack multiple layers and cut them simultaneously in a single pass, drastically reducing unit costs.
24/7 Automated Machining: Automatic Wire Threading (AWF) allows overnight unmanned operation, keeping labor overhead low and lead times short.
Q: How do I get a fast quote for custom Wire EDM parts?
A: Simply email us your project details along with 2D or 3D CAD drawings.
Accepted File Formats: STEP, IGES, x_t, DXF, DWG, or PDF (with tolerances noted).
Quotation Turnaround: Our engineering team will review your drawings, perform a DFM (Design for Manufacturability) check, and provide a competitive quote within 24 hours.
Q: Can you machine micro-parts or ultra-tight internal corners?
A: Absolutely. Utilizing fine brass wire (down to Ø0.10 mm) on our high-precision Seibu M50B EDM machines, we can cut extremely narrow slots and tight internal radii down to R0.05 mm, achieving tight tolerances of ±0.003 mm.
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