Sequential Workflow

Manufacturing Process

Engineering Methodology

From Raw Steel Billet to High-Precision Component

At A R Auto Parts Engineering, quality is built into every step. We utilize a synchronized manufacturing pipeline integrating hot forging, multi-axis CNC turning, and continuous in-process metrology checks.

01

CAD & Drawing Review

Customer 2D/3D CAD blueprint analysis, tolerance limits, and custom tooling setup planning.

02

Billet Cutting

Certified steel round bars cut to exact lengths with heat number traceability.

03

Hot Forging

Controlled induction heating, drop hammer forging, and flash trimming for dense grain structure.

04

CNC Machining

High-precision CNC turning, facing, boring, and threading to tight micron tolerances.

05

In-Process QC

Continuous dimensional metrology using micrometers, bore gauges, and Go/No-Go thread checks.

06

Safe Dispatch

Corrosion-inhibiting oil coating, protective packaging, and on-schedule transit readiness.

Deep Dive

Manufacturing Stages In Detail

Billet Shearing and Material Sourcing
Stage 01 & 02 / Sourcing & Shearing

Raw Material Selection & High-Speed Shearing

All production begins with certified carbon and alloy steel stock. We verify steel heat test certificates, chemical compositions, and diameters before releasing material to the automated shearing bay.

  • Certified round bar stock matching customer tensile & yield criteria.
  • High-capacity billet shearing ensuring uniform weights and flat cut faces.
  • Systematic heat code tagging and batch segregation.
Stage 03 / Forging & Structural Integrity

Induction Heating & Closed-Die Hot Forging

Cut billets are brought to controlled forging temperatures in electric induction heaters, minimizing scale formation. Heavy drop hammers deform the heated metal into closed dies, producing high-integrity blanks without internal voids.

Continuous Grain Flow

Grain lines follow component contours, giving superior strength to axle clamps, yokes, and gear blanks.

Precision Flash Trimming

Dedicated trimming presses cleanly shear excess flash for consistent machining datum faces.

Controlled Normalizing

Heat treatment relieves internal forging stresses and establishes optimal metal machinability.

Precision CNC Turning Floor
Stage 04 & 05 / Machining & Metrology

Multi-Axis CNC Turning & Micron Tolerances

Forged blanks move to our precision CNC turning shop. Skilled machinists execute facing, bore turning, grooving, chamfering, and thread cutting strictly adhering to customer CAD blueprints.

  • Tight micron dimensional control on bearing journals and seal seats.
  • Continuous Go/No-Go thread gauging and optical diameter sampling.
  • Fine Ra surface finishes ensuring reliable operational fitment.
Quality Integration

Quality Checkpoints Across Every Production Gate

No batch moves forward without formal quality sign-off at each defined milestone.

G1

Raw Material Gate (Chemical & Dimensional Inward QC)

Round bar diameter verification, surface crack inspection, and test certificate cross-checking prior to cutting.

G2

Forging Gate (Temperature & Die Alignment QC)

Optical pyrometer heating checks, forging weight control, and complete flash trim verification.

G3

First-Piece Machining Gate (CAD Blueprint Verification)

Full 100% drawing inspection on the initial machined component before authorizing continuous batch turning.

G4

In-Process Gate (Gauge Sampling & Offset Monitoring)

Regular bore micrometer checks, thread pitch gauging, and CNC tool insert wear compensation.

G5

Pre-Dispatch Gate (Preservation & Packaging QC)

100% visual deburr check, anti-rust oil coating, count verification, and heavy-duty wooden box packaging.