Fine‑Blanking
High-precision cutting, smooth edges, reduced cracking, consistent quality since 2004.
Technology & Quality
From Gear Hobbing to High-Precision Fine‑Blanking Innovation — Enhancing strength, consistent quality, and process safety.
Machine Capacity
Equipped with 250, 800, 1,200 ton machines. Supporting 1–12 mm thickness, 0.005–0.010 mm tolerance.
Robust Process
Developed Forging + Extrusion for sprockets, making material fiber significantly stronger than Hobbing.
Cost Reduction
Progressive Fine‑Blanking produces front/back in a single die, reducing material, process, and tooling costs.
What is Fine‑Blanking
What is Fine‑Blanking?
A metal stamping process that precisely controls pressure, clearance, and material support to achieve smooth-edged parts with low tolerance.
Core Principle
Sheet metal forming by shearing with delicate control of pressure, distance, and material support. Results in smooth-edged, high-precision parts with reduced cracking.
- Smooth edges, reduced Burr
- Low tolerance
- Ready for next process
- Consistent repeat quality
Fine‑Blanking Production Process (Overview)
1Material Prep
Select high-grade steel and inspect quality. Sheet metal prepared to exact thickness specs.
2Tool & Die
Design/produce Fine‑Blanking and Progressive dies according to part specs.
3Fine‑Blanking
Forming with high pressure (250/800/1,200 tons) for smooth and sharp edges.
4Forging/Extrusion
For front sprockets, using forging and extrusion to strengthen fiber structure.
5Heat Treatment & Coating
Hardening/tempering and surface coating based on application to extend wear life.
6100% Inspection
Inspect dimensions, strength, and surface. Maintain traceability for every lot.
Quality
Quality Inspection
DDC Sprocket focuses on quality in every step to ensure products meet precise specifications and customer satisfaction.
Core Measurement & Inspection Instruments
C
CMM (Coordinate Measuring Machine)
Inspect 3D dimensions (Shape and Dimension) with high precision.
V
VISION
Up to 500× magnification. Ideal for small parts requiring high resolution.
I
IM (Instant Measurement)
Automated measurement tool with complete functions. Fast and accurate.
V
VR Scan 3D
2D/3D scanning for quick and comprehensive overview.
R
Surface Roughness Tester
Fast and precise surface roughness measurement for quality control.
Need technical specifications?
Request SpecsSpec documents, materials, machinery, and test results available for partners.