Manufacturing Case Studies

Manufacturing Case Studies by Process, Industry and Quality Evidence

Find SPI manufacturing case studies by process route, industry context or the type of evidence used to verify the result.

Each case is project evidence, not a technical tutorial. Use the Hub to find the closest manufacturing context, then open the relevant case for its actual risk, inspection and verification evidence. For the engineering logic behind process selection, materials, tolerances, validation and manufacturing release, start with the Technical Article Hub .

CMM inspection report, balloon drawing and machined component used as manufacturing case study evidence Project Evidence
Case studies connect manufacturing results with inspection, traceability and project-specific verification evidence.
Browse by Process

Find Case Studies by Manufacturing Process

Start with the manufacturing route closest to your project. Each collection shows what was produced, which project risk mattered, and what evidence was used to verify the result—without turning this Hub into a process tutorial.

01 Molding

Injection Molding

Review molded-part programs where dimensional stability, appearance, assembly fit, tooling condition or production approval had to be demonstrated with project-specific evidence.

What These Cases Prove CTQ control, molded-part quality, trial evidence and production-readiness verification across multiple industries.
Automotive Medical Electronics Industrial
02 Machining

CNC Machining

Use CNC case evidence when datum relationships, runout, concentricity, flatness or other machined CTQs are more relevant than molded-part behavior.

What These Cases Prove Machining route, dimensional verification and inspection evidence tied to assembly-critical features.
Automotive CNC Case
03 Tooling

Mold & Tooling

Review tooling cases when the main question is insert fit, shut-off control, localized wear, interchangeability or another mold-level decision rather than the molded part alone.

What These Cases Prove Tooling-risk decisions supported by fit checks, hardness records, revision control and release evidence.
Mold Insert Cases
04 Additive / Hybrid

3D Printing & Hybrid Manufacturing

Use additive or hybrid cases when near-net geometry is combined with secondary machining on datums, bores or other assembly-critical interfaces.

What These Cases Prove How additive geometry and CNC finishing can be combined with dimensional inspection for prototype review.
Aerospace Hybrid Case
Case-study boundary: these pages show project evidence from similar manufacturing routes; they do not replace a new feasibility or DFM review for a different geometry, material, tolerance set or production requirement.
Browse by Industry

Find Case Studies by Industry and Project Risk

Industry context changes which project evidence matters most. Use these collections to find programs with comparable CTQ, appearance, traceability, fit or production-control requirements, then open the individual case for the actual project evidence.

Need to confirm the industry route first? Review our Industries We Serve hub before comparing the case collections below; use these cases when you are ready to evaluate project-specific manufacturing and verification evidence.

01 Automotive

Automotive Programs

Review projects where dimensional fit, cosmetic or optical appearance, assembly condition and repeat-production control were central to the result.

Evidence Focus CTQ measurement, CMM / FAI records, mold-trial evidence and production-approval documentation where required.
Automotive case studies
02 Medical

Medical Component Programs

Use these examples when part identity, dimensional consistency, sealing or functional interfaces and documented traceability are more important than cosmetic similarity alone.

Evidence Focus CTQ inspection, material traceability, sample verification and project-specific validation support.
Medical case studies
03 Electronics

Consumer Electronics

Review enclosure and molded-component cases where visible surfaces, thin-wall geometry, snap-fit behavior and assembly interfaces had to remain controlled.

Evidence Focus Cosmetic acceptance, CTQ inspection, fit checks and trial-to-release evidence for housing and enclosure programs.
Electronics mold cases
04 Industrial

Industrial Components

Use industrial cases when the strongest proof is a documented defect correction, dimensional recovery or process-stability improvement rather than a single approved sample.

Evidence Focus Before-and-after defect evidence, corrective action, inspection results and repeatable production condition.
Industrial case studies
05 Consumer

Toy & Consumer Products

Review cases where molded edges, snap engagement, warpage, appearance or repeated handling affected product acceptance and assembly performance.

Evidence Focus Fit and function checks, molded-edge review, dimensional correction and documented trial results.
Toy mold case studies
Industry boundary: a case from the same industry can show relevant manufacturing evidence, but it does not establish feasibility for a new geometry, material, tolerance set or approval requirement.
Browse by Evidence

Find Case Studies by the Evidence Used to Verify the Result

When the industry or process alone is not enough, use the evidence type to find comparable projects. These collections point to cases where inspection, approval, trial, corrective-action or traceability records show how the manufacturing result was verified.

Manufacturing case study evidence including part drawing CMM report FAI records and inspection results Verification Evidence
Drawings, dimensional reports and approval records help buyers compare how a case result was verified—not just what was manufactured.

CTQ & CMM Evidence

Use these cases when datum relationships, fit, position, runout or other critical dimensions drive acceptance.

View CTQ-focused cases

FAI & PPAP Evidence

Find projects where dimensional reports, approval packages or structured production records support release.

View approval-evidence cases

Mold Trial & Validation Evidence

Use these cases when trial condition, sample verification and documented release evidence matter to the project.

View validation-supported cases

Defect Correction Evidence

Review before-and-after cases where warpage, flash, weld line or other production defects were corrected.

View corrective-action cases

Material & Traceability Evidence

Use these examples when material identity, lot status, revision control or documented part history is central to supplier evaluation.

View traceability-focused cases
Evidence boundary: CMM, FAI, PPAP, trial or traceability records show how a published case was verified. The required evidence package for a new project still depends on its drawing, application risk, production stage and customer requirements.
How to Use the Cases

Use a Similar Case as Evidence, Not as a Feasibility Guarantee

A published case is most useful when it helps you identify a comparable manufacturing problem, verification method or project risk. It should narrow the review—not replace a new engineering assessment.

01

Match the Manufacturing Context

Compare the process route, part function and major geometry before treating a published result as relevant to your RFQ.

02

Compare the Risk and Evidence

Look for similar CTQs, material behavior, defect risks, inspection methods or traceability requirements—not only a visually similar part.

03

Recheck the New Drawing

Different tolerances, resin or alloy grades, datum schemes, volumes and approval requirements can change the manufacturing route even when two parts appear similar.

Decision rule: use the closest case to understand relevant experience and evidence; use the new drawing and requirements to decide actual feasibility.
Manufacturing case study example showing a part sample drawing inspection report and verification records Case Review Context
Compare the project context and verification evidence before applying lessons from one published case to another RFQ.
From Case Evidence to Your RFQ

Found a Relevant Case? Review the Process Fit for Your Own Part

A published case can show comparable manufacturing experience, but your drawing still defines the actual process route. Review the relevant capability, then send SPI the current CAD, material, quantity and critical requirements for a project-specific DFM review.