Vimal Forge LLP
Engineering Journals

Metallurgy & Forging Technical Blog

Whitepapers, guides, and metallurgical analyses written by our in-house engineering and QA team.

METALLURGY • OCT 12, 2025

Spheroidized Annealing in Bearing Steels (SAE 52100): Achieving 100% Pearlite Resolution

An in-depth review of spheroidize annealing temperature profiles for high-carbon chromium steel. Learn how heat cycles affect pearlite structure, hardness ranges, and carbon distribution, ensuring excellent machining performance and tool longevity during OEM turning processes.

MANUFACTURING • SEP 28, 2025

Radial-Axial Ring Rolling vs Hammer Forging: Material Yield Analysis

Comparing manufacturing routes for seamless metal rings. This study shows the weight reductions, flashing savings, and machining allowance optimization achieved by radial-axial ring rolling mills compared to traditional open or closed die hammers.

HEAT TREATMENT • AUG 15, 2025

Understanding Isothermal Annealing for Gear Blank Stability

Explore how isothermal heat cooling processes prevent dimensional distortion and surface cracks during post-machining case hardening. Review microstructure phase diagrams for alloy steels 20MnCr5 and 8620 used in automotive gears.

ENGINEERING DESIGN • JUL 02, 2025

Designing Closed Die Forgings: Draft Angles, Fillets, and Tolerances

A practical guide for mechanical designers developing forged shapes. Includes draft recommendations for inner and outer surfaces, fillet radius formulas to prevent die wear, and standard forging tolerance standards (DIN 7526 / EN 10243).

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