Custom Forging Services in China

Custom Forging Services for Strength-Critical OEM Components

TIANHUI provides custom forging services in China for strength-critical OEM components. Strength alone does not define the route: load direction, material, heat treatment, preform, machining allowance and final inspection all affect whether a forged component will perform as intended. We review the load-bearing function and finished geometry before the die and process sequence are fixed.

Forging Capability

Forging Range & Production Capability

TIANHUI combines forging with heat treatment, machining and project-specific inspection for strength-critical OEM components. The capability data below summarizes part range, press capacity, tolerance, materials and finished-part supply scope.

FORGING WEIGHT0.5–50 kg

Current confirmed forged-part weight range. Material flow, section changes and preform design are still reviewed against the actual geometry.

PART SIZEUp to Approx. 300 × 450 mm

Reference maximum part envelope based on current capability data. Final feasibility depends on shape, projected area, material and forging route.

PRESS CAPABILITYUp to 1600 T

Multiple equipment sizes are available, with the forging route selected according to part size, material flow and forming load.

FORGING TOLERANCEGB/T 12362-2016 CT10–CT14

Typical forging tolerance reference. Machining allowance is planned separately for critical bores, splines, faces and datum-controlled features.

COMMON MATERIALSCarbon / Alloy / Stainless Steels

Material grade, heat-treatment condition and mechanical-property requirements should be defined with the drawing and end-use requirement.

TOOLING / SAMPLE LEAD TIMEAbout 35 Days

Typical reference for tooling and sample development, subject to die complexity, material, heat treatment and downstream machining scope.

HEAT TREATMENTSpecified by Material & Property Requirement

Heat treatment and hardness targets are coordinated according to material grade, drawing requirements and the required mechanical performance.

FINISHED-PART SUPPLYForged Blank → CNC-Machined Component

Supply can extend through heat treatment, CNC machining, grinding, local hardening, NDT, FAI and final inspection where specified.

Capability note:The weight, size, press and tolerance figures above are reference capabilities. Final forging feasibility depends on alloy, material flow, die design, heat treatment and machining allowance.
Process Fit

Choose Forging When Load Path and Mechanical Performance Drive the Part

The process is most valuable when service loading, material behavior and final mechanical properties matter enough to shape the blank before machining.

01 / Loading

Strength-Critical Duty

Forging is considered for components that carry meaningful mechanical loads, impact or repeated service stress.

02 / Flow

Material Flow by Design

Preform and forming strategy are reviewed so stock distribution and material flow support the intended geometry and loading direction.

03 / Properties

Heat-Treated Performance

Material grade and heat treatment are planned together with distortion risk, hardness and mechanical-property requirements.

04 / Finish

Machined Forged Components

Bores, splines, threads, faces and other critical interfaces can be CNC machined after forging to reach final drawing requirements.

Tooling, Heat Treatment & Approval

Approval Does Not End at the Forged Blank

A visually acceptable forging is not enough for a strength-critical part. Trial forging, heat treatment, machining, mechanical checks and NDT must follow the agreed finished-part requirement.

01

Engineering Review

Review parting, draft, grain-flow intent, machining stock, material standard and critical load areas.

02

Die & Preform

Tooling and preform strategy are developed around material flow and the final forged shape.

03

Trial Forging

Samples are checked for fill, laps, scale, deformation and sufficient machining stock.

04

Heat Treat / Machine

Required heat treatment and machining are completed before final property and dimensional checks.

05

FAI / NDT Approval

First-article, mechanical or NDT requirements are completed according to the agreed project plan.

Quotation scope:Tooling, heat treatment, rough or finish machining, NDT, mechanical testing and certificates should be separated or clearly included in the quotation.
Materials

Material Options for Forging

The material should be selected around strength, toughness, corrosion, temperature, wear and final service conditions.

Carbon Steels

Commonly selected for general mechanical and structural forged components.

Alloy Steels

Used where higher strength, toughness, wear resistance or specific heat-treated properties are required.

Stainless Steels

Suitable for applications requiring corrosion resistance together with mechanical performance.

Aluminum Alloys

Used for lightweight forged components where strength-to-weight ratio matters.

Copper Alloys

Selected for specific electrical, thermal, corrosion or mechanical requirements.

Specified Grades

Material standards and heat-treatment requirements can be reviewed from the drawing and project specification.

Forging Production Route

From Billet Preparation to Finished Forged Components

The production route controls material condition, forming sequence, heat treatment, machining allowance and final verification around the finished component.

01

Billet Preparation

Confirm material grade, billet size and cut weight according to the approved forging and preform strategy.

02

Heating & Preform

Control heating where required and prepare the stock so material is distributed for the final forging operation.

03

Forging & Trimming

Form the component under the selected press route, then trim flash and complete initial forging checks.

04

Heat Treatment

Apply the specified heat-treatment condition to achieve the required hardness and mechanical properties.

05

CNC & Local Finishing

Machine bores, splines, faces, threads and other critical interfaces, with grinding or local hardening where specified.

06

NDT & Final Inspection

Verify dimensions, hardness, mechanical properties, NDT requirements and agreed project documentation before release.

Project Examples

Forging Projects Where Machining and Heat Treatment Matter

These examples show why forged-part sourcing often extends beyond the forging operation itself.

42CrMo / CAM

Forged & Machined Cam

Forging, rough machining, quenching and tempering, precision machining and induction hardening.

  • ISO 2768-mK reference
  • Selected dimensions to IT7
  • Ra 1.6 machined surface requirement
  • 8H involute spline
  • Induction hardened HRC 56–60
UHV CONTROL MECHANISM

Stainless Steel Forged Eccentric Camshaft

A forging + machining route for a core control-mechanism component with tight spline and angular relationships.

  • Selected dimensions to IT7
  • Ra 1.6 surface requirement
  • 7f involute spline
  • ±0.15° angular relationship
  • 100% non-destructive testing
Featured Products

Selected Forged Components

Examples below show strength-critical components where forging, heat treatment and finish machining are reviewed as one connected manufacturing route.

View All Products →
Industries & Applications

Where Forging Fits Strength-Critical Applications

Forging is commonly selected where load, fatigue resistance, impact performance and reliable material flow matter more than near-net cast complexity.

01

Agricultural Machinery Parts

Yokes, forks, shafts, joints and drivetrain-related components for tractors and implements where strength and repeat durability are critical.

02

Automotive Components

Strength-critical drivetrain, steering and structural components where forged material flow and controlled heat treatment support service performance.

03

CNC Machined Components

Rod ends, clevises, pins, mounts and other loaded components used in hydraulic cylinders and fluid-power assemblies.

04

Forged Components

High-load pins, links and structural components for construction and earthmoving equipment where toughness and fatigue performance are important.

Related Capabilities

Choose the Right Manufacturing Route

Different geometry, volume, material or tolerance requirements may favor a casting or machining process instead.

Process Integration & Secondary Operations

Integrate Forging, Heat Treatment, Machining and Finishing as One Route

Secondary operations are planned around the finished-part requirement so quality, dimensional stability, lead time and total manufacturing cost are optimized across the complete route.

PROJECT-BASED

Heat Treatment

Quench and temper or other specified heat-treatment routes can be incorporated where the material standard and mechanical properties require them.

INTEGRATED

CNC Machining

Forged blanks can be supplied rough-machined or finish-machined with controlled datums, bores, threads, splines and assembly interfaces.

PROJECT-BASED

Local Hardening & Grinding

Induction hardening, grinding or other local finishing operations can be reviewed when wear surfaces, fits or functional hardness zones are specified.

QUALITY RECORDS

NDT, Mechanical Testing & Records

Specified NDT, hardness or mechanical-property verification and agreed material or inspection records can be incorporated into the release plan.

Quality Control

Forging Quality Is Defined by Material, Heat Treatment and Defect Acceptance

For strength-critical components, dimensional inspection alone is not enough. Material traceability, forging condition, heat treatment, mechanical properties, NDT and final machining must be controlled as one route.

01 / Material

Grade & Process Specification

Confirm material grade, loading condition, heat-treatment requirement, critical geometry and the records required for release.

02 / Forging

Forging & Heat-Treatment Control

Process checkpoints are arranged around the forging route, material flow, heat treatment and any distortion risk that can affect downstream machining.

03 / Verification

Mechanical Properties & NDT

Hardness, tensile, metallography or specified NDT can be incorporated according to the drawing, defect class and customer acceptance standard.

04 / Finished Part

Machining & Final Release

Critical bores, splines, datums, surfaces and required documentation are verified after the specified process sequence is complete.

MaterialSpectrometer / material records

Grade verification is linked to the required heat-treatment condition and mechanical-property specification.

PropertiesHardness / tensile / metallography

Mechanical or microstructure checks can be included where the drawing, material standard or control plan requires them.

NDTMagnetic-particle / specified NDT

The NDT method, inspection extent and acceptance criteria are defined according to material, loading and defect requirements.

Dimensions & SurfaceCMM / gauges / roughness

Finished machining, spline relationships, bores, functional surfaces and datum relationships can be verified after the required process steps.

For critical forgings, define the material certificate, heat-treatment record, mechanical-property results, NDT method and acceptance standard, dimensional-report scope and FAI / PPAP requirements before quotation. “NDT available” is not a complete quality requirement.

Process Selection

When Forging Adds Value Over Casting or Machining From Solid

Forging adds value when load, fatigue, impact performance and material integrity matter enough to justify tooling, heat treatment and downstream machining. The finished application should drive the comparison.

Choose Forging When

Strength, fatigue, impact behavior, material flow and dependable mechanical performance are central to the component's service life.

Consider Investment Casting When

The geometry is more intricate, cavities or fine details dominate, and the service load does not require a forged grain-flow advantage.

Compare Investment Casting →
Consider Sand Casting When

The part is a large housing or body where geometry and cost matter more than forged mechanical performance.

Compare Sand Casting →
Consider CNC From Solid When

Prototype or low-volume demand is limited, the geometry is machining-friendly, and forging tooling or preform development cannot yet be justified.

Compare CNC Machining →
FAQ

Forging Material, Heat Treatment & Machining FAQs

Practical questions about process selection, material flow, heat treatment, machining allowance, inspection and the information needed to quote custom forged components.

Forging should be reviewed when strength, fatigue, impact behavior, material integrity or directional material flow are important to service performance. Casting may be better for more intricate cavities and housings, while machining from solid can suit prototypes or low-volume parts where tooling is difficult to justify.
The way material deforms during forging can influence how the finished component carries load. Preform and forging-direction decisions should therefore be reviewed together with the part geometry, loading direction, machining stock and heat-treatment requirements.
Yes. A forging project can include heat treatment, CNC machining, grinding or other specified finishing, inspection and final packaging. The sequence should be planned around dimensional stability, hardness and the finished functional surfaces.
Allowance depends on the forging geometry, die and flash conditions, material, heat treatment, distortion risk, datum strategy and finished tolerance. The goal is to leave enough stock for stable machining without adding unnecessary material and cycle time.
Define the material standard, mechanical-property or hardness requirements, any required NDT, critical dimensional characteristics and the FAI, PPAP or other documentation needed for approval. Inspection scope should reflect the actual service risk of the part.
Provide the drawing or 3D model, material grade and standard, expected quantity, loading or mechanical requirements, heat-treatment condition, machining features, surface requirements, inspection requirements and required delivery condition.
Manufacturing Review

Send Us Your Forging Drawing

TIANHUI MACHINE provides custom forging services for components requiring strength, toughness and dependable mechanical performance. Our manufacturing capabilities support forged stainless steel, carbon steel, alloy steel, aluminum and brass components. Send your drawing or sample to our China factory for process evaluation and an OEM quotation.

Send your drawing or 3D model together with the material grade, loading requirements, quantity, heat-treatment condition, critical machining areas and inspection requirements. We will review the forging route, preform, machining allowance and downstream operations before quotation.

Request a Manufacturing Review →