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Closed Die Forging — Amsol Industries
Closed die forging press and forged components
Manufacturing Capability

Closed Die Forging.

Shape, Strength, Repeatability. Closed die forging is built for components that need forged strength with repeatable geometry. Amsol supports forged automotive, railway, agriculture, machinery, and industrial components where grain flow, fatigue resistance, dimensional control, and production economics must work together.

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Process 01
Tooling & Billet Preparation
Die design · billet size · flash allowance · forging sequence planned.
Process 02
Closed Die Forging
Heated billet pressed into shaped dies · repeatable grain-flow geometry.
Process 03
Trimming, Heat Treatment & CNC
Flash trimming · heat treatment · machining · inspection.
Process Flow

From Billet to Finished Forging — 6 Steps

Every closed die forged component at Amsol follows a controlled route from drawing review to die design, billet heating, forging, trimming, heat treatment, CNC machining, and final inspection.

Drawing and process review for closed die forging
01
Drawing & Process Review
Part geometry, load path, draft, material, volume, and machining requirement reviewed.
Die design and tooling for closed die forging
02
Die Design & Tooling
Forging die designed with flash, parting line, and shrinkage considerations.
Heated billet pressed into forging dies
03
Billet Heating
Billets cut and heated to controlled forging temperature.
Closed die forging operation
04
Closed Die Forging
Metal pressed into die cavity to achieve repeatable forged geometry.
Flash trimmed and heat treated forged part
05
Trimming + Heat Treatment
Flash trimmed and part heat-treated for required strength and hardness.
CNC machined and inspected forged parts
06
CNC Machining + Inspection
Functional faces, holes, bores, and threads machined; final inspection completed.
Process Deep-Dive

Closed Die Forging Capability

Closed die forging supports forged strength, repeatable geometry, fatigue performance, controlled grain flow, tooling-led economics, CNC finishing, and inspection-ready production parts.

Forging tooling and DFM setup
Capability 01
Forging Tooling & DFM
◆ Forging Tooling & DFM
The Die Decides the Economics.
Closed die forging starts with tooling logic. Amsol reviews parting line, draft angle, flash allowance, grain flow, machining stock, and expected volume before tooling commitment. This ensures the forged shape is technically strong and commercially practical.
Medium–High Volume
Best fit
Near-Net Shape
Material saving
Draft + Flash
Tooling logic
DFM Required
Before die
Tooling · forging simulation · parting line · machining allowance
Forged strength components
Capability 02
Forged Strength
▲ Forged Strength
Grain Flow Where the Load Travels.
Unlike machining from bar, closed die forging shapes the metal grain flow around the component. This improves fatigue resistance and impact performance in load-bearing parts such as yokes, levers, hooks, brackets, pins, and linkages.
EN8 / EN24 / 4140
Common grades
Fatigue Duty
Strength advantage
Q&T Possible
Heat treatment
Auto / Rail / Agri
Industry fit
Yokes · levers · pins · brackets · hooks · linkages
CNC finished closed die forgings
Capability 03
CNC Finished Forgings
■ CNC Finished Components
Forged Outside. Precise Where It Fits.
Many forged parts still need CNC machining for holes, faces, threads, bores, grooves, and bearing areas. Amsol supports forging plus machining so the customer receives a finished part, not only a forged blank.
CNC Machined
Critical features
CMM Checked
Final dimensions
Hardness Verified
Heat treatment check
Zinc · Phosphate · Blackodise
Finish options
Finished forgings · machined holes · threads · bearing faces
Material Capability

Forging Grades for Strength, Toughness, and Repeatable Production.

Amsol selects closed die forging material based on load path, fatigue duty, corrosion exposure, machining need, heat treatment route, and final production volume.

MaterialTypical UseStrength
EN8 / C45General forged parts, levers, bracketsCost-effective strength and machinability
EN24 / 4140High-load pins, railway parts, yokes, linkagesToughness, fatigue resistance, Q&T performance
Stainless SteelCorrosion-resistant forged partsMarine, process, food, and fluid system applications
Micro-Alloy SteelAutomotive and high-volume forged partsGood strength with possible heat-treatment savings
Process Selection

Choose Closed Die Forging When Strength and Repeatability Matter

Closed die forging becomes the right route when production volume, forged grain flow, near-net geometry, material saving, and final machining economics work together.

Choose Closed Die Forging WhenWhy It HelpsAmsol Route
Part has medium-to-high volume.Tooling cost gets balanced by repeatable forged output.DFM, die design, forging, trimming, heat treatment, CNC, inspection.
Strength is better achieved through grain flow.The metal flow follows the part geometry and load path.Closed die forging for yokes, levers, brackets, hooks, pins, and linkages.
CNC from solid creates too much waste.Near-net forging reduces material removal and cycle time.Forging plus CNC for holes, faces, bores, grooves, and threads.
Casting is not strong enough for the application.Forging improves fatigue resistance and impact-duty performance.Material grade review, heat treatment route, hardness check, and inspection.
Repeatable forged geometry reduces final machining cost.Stable shape reduces downstream finishing effort.Die-led production with CNC finishing and CMM reports.
Process Photography

The Closed Die Forging Route — From Billet to Finished Forging

Replace placeholders with Amsol facility photography. Use tooling, billet heating, closed die forging, trimming, heat treatment, CNC machining, and final inspection images.

Industry Applications

Where Amsol Closed Die Forgings Go

Closed die forged components are used where production repeatability, forged strength, fatigue resistance, CNC-fitment accuracy, and part economics decide performance.

Automotive closed die forged parts
Automotive
Yokes · levers · brackets · shafts · linkages
Fatigue-Duty Parts
Railway forged fittings
Railways
Pins · locking parts · forged fittings
High-Load Fitments
Agriculture repeatable forged components
Agriculture
Tines · levers · machine hooks · wear parts
Wear-Loaded Parts
Construction and mining forged parts
Construction & Mining
Heavy-duty pins · linkages · brackets
Impact Duty
Machinery OEM CNC finished forged parts
Machinery OEMs
Custom forged parts · coupling blanks · drive components
CNC Finished Parts
Quality Strip

Closed Die Forging Quality Verified Through Die Control, Traceability, Testing, and Inspection.

Closed die forging quality depends on tooling control, heat-number traceability, heat treatment discipline, hardness verification, CNC inspection, and final CMM reporting.

Die Control
Tooling, parting line, flash allowance, and repeatable die geometry controlled before production.
🔢
Heat Number Traceability
Material grade and heat number maintained for production batches and dispatch records.
Hardness Testing
Hardness checked where Q&T, heat treatment, or strength requirement applies.
📐
CNC Inspection
Machined holes, bores, faces, threads, and fitment areas checked before dispatch.
🔥
Heat Treatment Certs
Heat treatment route documented for required strength, toughness, and hardness.
📋
CMM Reports
Final dimensions verified with report support where critical fitment features require proof.
Finished closed die forged components
Get Started

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Amsol reviews your part for closed die forging feasibility, tooling cost, machining allowance, material grade, heat treatment, and production economics.

✓ DFM feedback in 24 hours ✓ NDA available ✓ ISO 9001:2015 ✓ Forging + CNC under one route
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