Product Parameters
| Item | Specification |
|---|---|
| Material | Carbon Steel (1045, 4150), Alloy Steel (4340) |
| Forging Method | Closed-Die, Open-Die |
| Application | Gears, pinions, power transmission components |
| Heat Treatment | Annealed, Normalized, Q&T |
| MOQ | 10 pcs |
description
Forged gear blanks start as close-to-shape forgings that are subsequently machined to final gear tooth geometry - the forging process produces favorable grain flow around the tooth form, better material density than casting, and mechanical properties that casting cannot match. For heavy-duty gears and high-load power transmission, forged blanks are the standard starting point. The tooth geometry is not forged - it is machined from the forged blank using gear cutting tools. But the material properties of the forging, with grain flow aligned with the tooth profile, give the finished gear superior fatigue resistance compared to gear cut from bar stock.
Why Stress Relief Before Gear Cutting
FAQ
Q1: MOQ?
A1: 10 pieces for standard forging quantities.
Q2: Materials?
A2: 1045, 4150 carbon steel. 4340 alloy steel for high-load applications.
Q3: Forging method?
A3: Closed-die for high volumes, open-die for lower volumes and larger blanks.
Q4: Heat treatment?
A4: Normalized or Q&T supplied before gear cutting. Case-hardening or induction hardening for teeth.
Q5: Custom configurations?
A5: Yes. Custom tooth counts, module sizes, hub and bore configurations.
Q6: Stress relief?
A6: Recommended for precision gears before tooth cutting to minimize distortion during hardening.
Quality is non-negotiable in precision manufacturing. Every component undergoes rigorous inspection at each stage of production.
- ISO 9001:2015 - Certified quality management system covering design, machining, and inspection
- CMM Inspection - Coordinate measuring for complex geometries and tight tolerances
- Surface Roughness Measurement - Ra, Rz, and Rt charting with every inspection report
- Passivation / Electropolishing - ASTM A967 procedures for corrosion resistance
- Material Traceability - Heat number tracking from raw material to finished part
- First Article Inspection (FAI) - Full dimensional report included with every new order
From raw material to finished product, every step is controlled and documented:
- Pattern Making - Wooden or metal pattern fabrication for sand/centrifugal/investment casting
- Molding - Sand casting, shell mold, centrifugal, or lost-wax investment casting setup
- Melting & Pouring - Controlled furnace melting with chemistry and temperature monitoring
- Solidification & Shakeout - Controlled cooling with riser/removal and core shakeout
- Heat Treatment - Annealing, normalizing, or solution treatment per specification
- Machining - CNC machining, drilling, and tapping to final dimensions
- Surface Treatment - Grinding, welding, or coating as required
- Inspection & Testing - Dimensional, visual, hydrostatic, or NDT inspection
- Cleaning & Packaging - Sand removal, degreasing, rust prevention, and packaging
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