Engineering review for every RFQ
CNC · 3D Printing · Sheet Metal · Injection Molding
Prototype · Low Volume · Production
Process, material, finish and inspection decisions connected

Shenzhen, China

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A practical manufacturing partner connecting process, materials, applications and review.

The factory collage shows building, workshop and manufacturing context.

An illustrative planning graphic connects critical features, manufacturing decisions and engineering review. It is not a production inspection record.

Use Contact for general conversation or Engineering Review for a project-specific brief.

MACHINED

As machined

The visible surface is produced directly by machining and retains toolpath character.
Machined metal component with a circular bore, two smaller holes and visible tool marks
ENGINEERING DOSSIER

Make toolpath direction, base roughness and protected surfaces visible

The toolpath is the final visible surface

Define which machining marks, edges and burr conditions are acceptable without a later coating.

Sequence and substrate evidence

Record the base material, preparation, operation order and any approved appearance reference so the visible result remains explainable.

Acceptance belongs to named surfaces

Use a surface map for cosmetic zones, contacts, threads, fits, masking and geometry-dependent variation.

Release inputs for As machined

Specify surfaces, machining marks that matter, edge condition and critical interfaces.
APPEARANCE AND FUNCTION

Appearance, function and substrate boundary for As machined

Define which machining marks, edges and burr conditions are acceptable without a later coating.
Function: Protection, contact, wear or interface role. Use a surface map for cosmetic zones, contacts, threads, fits, masking and geometry-dependent variation.
Machined metal component with a circular bore, two smaller holes and visible tool marks
DECISION CONTROLS

Protected interfaces and acceptance controls for As machined

Sequence and substrate evidence

Confirm substrate alloy/grade, condition and any preparation specific to As machined. Compatibility must be checked against the named base material, not a generic family.

Acceptance belongs to named surfaces

Map cosmetic zones, datums, fits, threads, electrical contacts, seal lands and areas that must remain uncoated or require controlled build for As machined.

Release inputs for As machined

Specify As machined by process/standard where applicable, appearance reference, coverage, masking map, thickness or build requirement if relevant, and protected critical dimensions.
PROJECT-SPECIFIC DECISION DATA

Finish map before As machined release

Confirm substrate, preparation, appearance/function, protected zones and inspection evidence; do not infer acceptance from the finish name alone.
Decision itemWhat must be resolvedEvidence at release
The toolpath is the final visible surfaceDefine which machining marks, edges and burr conditions are acceptable without a later coating.Reference, texture, color or toolpath
Sequence and substrate evidenceRecord the base material, preparation, operation order and any approved appearance reference so the visible result remains explainable.Protection, contact, wear or interface role
Acceptance belongs to named surfacesUse a surface map for cosmetic zones, contacts, threads, fits, masking and geometry-dependent variation.Coverage, masking and critical features
Release inputs for As machinedSpecify surfaces, machining marks that matter, edge condition and critical interfaces.Coverage, masking and critical features
Surface finish masking diagram for sheet metal parts showing powder coating, plating, masked threads and grounding areas
INSPECTION AND ACCEPTANCE

Inspect As machined against the named reference and functional interfaces

Inspect As machined against the agreed sample/reference, coverage and surface zones; verify masked interfaces, thread function, fit-sensitive dimensions and any required adhesion/corrosion evidence.
Geometry, access, edges, recesses and part-to-part variation can affect the result; use a named reference and surface map.
PART AND PROCESS EVIDENCE

As machined close-up, process and acceptance evidence

Machined metal component with a circular bore, two smaller holes and visible tool marks
01_as-machined_cnc
Surface finish masking diagram for sheet metal parts showing powder coating, plating, masked threads and grounding areas
Surface finish masking diagram for sheet metal parts showing powder coating, plating, masked threads and grounding areas
Surface finish diagram for sheet metal parts showing cosmetic face, grain direction, masking, brushed finish, plating and powder coating
Surface finish diagram for sheet metal parts showing cosmetic face, grain direction, masking, brushed finish, plating and powder coating
DECISION QUESTIONS

As machined specification and inspection questions

What must be defined before reviewing As machined?

Define which machining marks, edges and burr conditions are acceptable without a later coating. Record the base material, preparation, operation order and any approved appearance reference so the visible result remains explainable.

Which interfaces need project-specific confirmation?

Use a surface map for cosmetic zones, contacts, threads, fits, masking and geometry-dependent variation. Geometry, access, edges, recesses and part-to-part variation can affect the result; use a named reference and surface map.

What should accompany release?

Specify surfaces, machining marks that matter, edge condition and critical interfaces. Coverage, masking and critical features
PROJECT BRIEF

As machined finish map and acceptance checklist

Use these page-specific checks to define substrate, preparation, appearance or function, protected zones and acceptance evidence for As machined. Do not release from the finish name alone.

Pretreatment and substrate — The toolpath is the final visible surface

Define which machining marks, edges and burr conditions are acceptable without a later coating. Record substrate and pretreatment on a controlled surface map.

Appearance or function — Sequence and substrate evidence

Record the base material, preparation, operation order and any approved appearance reference so the visible result remains explainable. Attach the named appearance or functional reference used for acceptance.

Masking and acceptance — Acceptance belongs to named surfaces

Use a surface map for cosmetic zones, contacts, threads, fits, masking and geometry-dependent variation. Mark masking, fit-sensitive zones and the inspection record required at release.
CONTINUE THE ENGINEERING REVIEW

Continue the engineering review for As machined

Connect this decision to the related manufacturing route, material, finish and file-review workflow.