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Thermal Technologies

Choose air- or liquid-cooling components around your thermal and mechanical requirements.

Stepped aluminum heat sink with copper contact insert — illustrative concept
Explore Thermal Technologies

Heat Sinks

Liquid Cooling

AI & Data Center Cooling

Manufacturing support for your cold plates, manifolds and cooling assemblies.

Processor cold plates and distribution manifold — illustrative concept
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AI Compute Cooling

Distribution & Assembly

AI Cooling Interfaces
  1. Cold PlateHeat-source interface
  2. ManifoldCoolant distribution
  3. CDU InterfaceConnection requirements
  4. Rack / LoopAssembly integration
Review component fit across your cooling system.

Industry Cooling Solutions

Find components for your power electronics, energy, laser and telecom application.

Machined power module cooling plate — illustrative concept
Explore Industry Cooling

Power Electronics

EV & Energy

Laser & Telecom

Industries

High-Tech & Electronics

Components for your electronic systems.

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Applications & Project Inquiries

Precision & Advanced Systems

Start with your functional and quality requirements.

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Applications & Project Inquiries

Industrial & Energy

Build around your operating environment.

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Applications & Project Inquiries

Materials

Metals

Review grade, temper and finish for your metal parts.

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Engineering Plastics

Match your polymer to function, process and environment.

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Elastomers & Specialty Materials

Confirm grade availability and application requirements.

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Resources

Design & Engineering

Practical guidance for your part geometry and material decisions.

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Cost & Planning

Prepare your process, budget and sourcing questions.

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Learn & Proof

Build your knowledge before production.

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About Us

About LK MFG

Learn who we are and how we operate.

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Get in Touch

Find our U.S. support team or start a conversation.

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Get Quote
sales@lkmfg.com (945) 409-1013

1750 Briercroft Ct, Suite 204
Carrollton, TX 75006, USA

QUALITY SUPPORT FOR YOUR PROJECT

Approve Your Part
Before You Scale Production.

Connect your drawing, critical dimensions, material records and approval criteria before repeat orders. Agree the inspection and documentation scope for your part instead of assuming one package fits every program.

Send Your Drawing & Quality Requirements →

Your drawings stay confidential. NDA available on request.

Illustrative CMM setup for an aluminum manifold inspection
Drawing review
Critical features
First article
PPAP scope when required
Production release

FAI / PPAP OVERVIEW

Build Your Approval Plan Around What Your Project Requires

Start with the controlled drawing and your customer requirements. Identify the characteristics to check, the records to provide and who can approve release.

  • Confirm the approved drawing and revision
  • Identify critical-to-quality and functional dimensions
  • Agree inspection method and sample quantity
  • Define material and finish records
  • Record approval criteria and required sign-off
  • Keep reports connected to the inspected part
Illustrative dimensional inspection of a precision machined component

6 Items to Align Before Your Part Approval

Resolve the information gaps that can delay your next build.

Drawing & revision

Your review: Model, drawing revision, specifications and notes.

Your benefit: A shared baseline for inspection.

Critical dimensions / CTQs

Your review: Functional features, datums, tolerances and measurement access.

Your benefit: A defined list of checks and acceptance limits.

Material & finish

Your review: Grade, condition, coating and required records.

Your benefit: An agreed record scope tied to your order.

Process readiness

Your review: Manufacturing route, tooling assumptions and changes from your prototype.

Your benefit: Open process questions resolved before release.

Inspection evidence

Your review: Characteristics, sample quantity, method and report format.

Your benefit: Results that can be compared with your criteria.

Release criteria

Your review: Approval owner, deviation handling and required sign-off.

Your benefit: A clear decision before repeat production.

Choose the Approval Scope Your Project Needs

Compare 4 review routes. Confirm the deliverables before ordering.

Illustrative fai quality review concept

First Article Inspection for Your Approved Revision

  • Use when a new or revised part needs a defined first-build check
  • Agree drawing characteristics, sample identification and report format
  • Connect each result to the inspected revision

Your benefit: review the first article before committing to repeat production.

FAI alone does not prove every functional or process requirement.

FAI and PPAP: different review scopes
ItemFAIPPAP
FocusDefined first-article characteristicsCustomer-required product and process evidence
DocumentsAgreed first-article resultsSubmission artifacts and level agreed with your customer
ApprovalAgainst agreed part criteriaCustomer-specific submission and approval rules
ScopePart and inspected revisionProduct, process and supporting records as required

6 Gaps That Can Delay Your Approval

Wrong revision

For your review: Confirm the revision on the part, drawing and report.

Unclear CTQs

For your review: Name the functional features and acceptable limits.

Missing material evidence

For your review: Agree the grade, record type and traceability scope.

Method not agreed

For your review: Resolve measurement access, datums and method before inspection.

Prototype process differs

For your review: Record material, tooling and process differences from production.

Release owner unclear

For your review: Define who reviews results and handles deviations.

Your Approval Workflow in 6 Decisions

Keep the decision, owner and evidence visible at each stage.

1

Confirm revision

Lock the drawing, material and applicable specifications.

2

Define the inspection plan

Agree characteristics, methods, quantity and acceptance criteria.

3

Identify the first article

Link the sample to your intended process and revision.

4

Inspect & record

Record agreed checks and retain the required evidence.

5

Review deviations

Identify issues and confirm disposition or corrective work.

6

Approve repeat-build inputs

Release the agreed revision, process and inspection requirements.

8 Artifact Types to Confirm for Your PPAP Scope

This is a discussion checklist, not a promise of every artifact or any PPAP level. Your customer requirements determine the agreed package.

Dimensional results / FAI

Agreed measurements and first-article records.

Process flow

The required manufacturing sequence when in scope.

PFMEA

Discuss availability and ownership if your customer requires it.

Control plan

Agree process and inspection controls when required.

Material certificates

Requested MTR, COA or equivalent records as agreed.

Measurement / capability data

Define study requirements and feasibility for your program.

Sample parts / retained samples

Agree identification, quantity and retention responsibility.

PSW / customer record

Use the required submission format and approval owner.

INSPECTION & QUALITY EVIDENCE

Connect Your Report to the Part You Approve

A useful report identifies the revision, sample, characteristic, method, requirement and result. Agree which fields and supporting records your program needs.

Revision control

Identify the drawing represented by the inspected build.

Sample identification

Connect your results to the checked sample or lot.

Acceptance limits

Show the required limits for the agreed characteristics.

Deviations & disposition

Record unresolved issues before a release decision.

Match Your Approval Checks to the Manufacturing Process

Illustrative die casting part for process-specific dimensional review

Die Casting →

Agreed casting and machined features, appearance and material requirements.

What Your Approval Record Set Can Include

6 record types to discuss before your build. These are document descriptions, not issued certificates or sample customer records.

First Article Inspection Report

Part number, approved revision, sample identification, results and deviations against your agreed scope.

Dimensional Inspection Results

Characteristics, drawing references, methods and results for the features you request.

Material Record / MTR / COA

Material identity and the supplier evidence required by your order, where available and agreed.

Certificate of Conformance

Your required part, revision, order and conformance statement, with agreed release authorization.

Revision / Lot Traceability

A defined link between the delivered lot, inspected samples and the approved manufacturing inputs.

Customer-Specific PPAP Package

Your requested level, forms and submission scope confirmed before the build; contents vary by program.

From First Article to Your Repeat Order

1

First article

Inspect the identified sample against agreed checks.

2

Review / correction

Resolve findings and document the approved disposition.

3

Production release

Confirm approved inputs and remaining conditions.

4

Repeat order

Use the controlled revision and review changes before rebuilding.

3 Input Groups for a More Complete Quality Review

1

Drawing & revision

  • Controlled PDF and available CAD
  • Latest revision and applicable notes
  • CTQs, datums and functional requirements
2

Approval requirements

  • Required FAI / PPAP format
  • Customer manual and submission level, if applicable
  • Report scope, sign-off and required evidence
3

Material, quantity & application

  • Requested material and finish
  • Sample and production quantities
  • Application, target timing and repeat demand

Your FAI / PPAP Questions

Do I need FAI or PPAP?

Start with your customer requirements. FAI checks agreed first-article characteristics; PPAP may require additional product and process records. Confirm the scope before placing the order.

Can I use my customer’s template?

Provide the template and applicable instructions for review. Confirm required fields, data availability and responsibility before the build.

Can an inspection report prove every functional requirement?

No. Dimensional measurements alone may not demonstrate performance, material behavior or durability. Specify any additional tests your application needs.

Is AS9102 or a specific PPAP level included?

Do not assume either is included. Provide the applicable requirement so scope, capability, records and approval responsibilities can be confirmed.

What if the first article does not pass?

Document the deviation, confirm the disposition and agree corrective work or reinspection before production release.

What changes require another review?

Review changes to drawing, material, process, tooling or other customer-controlled inputs against the applicable requirements before repeating production.

Illustrative inspection concepts are not actual customer parts, completed quality reports or evidence of a certification.