Assembly Solution

Reliable AssemblyStarts Earlier

Assembly failures start upstream - before parts reach your floor. We review risks, validate assemblability, and define the controls that prevent rework at scale.

Upload Your File & Get Matched

Fit risk check

Pack-out standard

Fastener control

Batch QC

Parts in -> controlled assembly -> ready-to-use units

Start with the assembly problem, not the build stage.

Excellent4.7 out of 5

What's your biggest assembly concern?

Choose the concern closest to what your team is seeing. We return a concrete action path that reduces failure, rework, or delivery instability.

Choose one

Current concern

Start From the Problem

Most teams do not need a stage model. They need to know what to do next and what failure it prevents.

Design risk

DFM Fix List

For parts that may be hard to make, quote, mold, machine, cast, or assemble.

Find geometry and tolerance blockers
Separate critical and non-critical requirements
Recommend concrete CAD or drawing fixes

Output: risk report + fix list

Process risk

Manufacturing Route

For teams unsure whether to print, machine, cast, mold, assemble, or combine processes.

Map process by quantity, material, and test goal
Expose lead-time and cost drivers
Avoid choosing a prototype route that cannot scale

Output: recommended route + quote path

Build risk

Pilot Build Plan

For teams ready to validate a low-volume build before tooling or launch spend increases.

Define CTQ and inspection gates
Plan fixtures, assembly, and acceptance criteria
Create repeatable build documentation

Output: pilot plan + QC gates

How We Reduce the Risk

Each action targets a failure mode that causes rework or unstable delivery.

Tolerance & Fit Review

Checks: mating features, stack-up, datum surfaces, access

Output: CTQ list and fit-control notes

Reduces: parts that fit once but not repeatedly

Fastener Control

Checks: torque, inserts, screw length, pull-out risk, clip engagement

Output: fastening method and verification plan

Reduces: loose screws, stripped inserts, field failures

Bonding Control

Checks: adhesive, surface prep, gap, cure time, squeeze-out

Output: bonding notes and acceptance criteria

Reduces: weak bonds and cosmetic rework

Batch QC Gates

Checks: dimensional, cosmetic, functional, and final assembly criteria

Output: inspection checklist and defect log

Reduces: batch-to-batch variation

Assembly Efficiency

Checks: sequence, fixtures, handling, repeated manual steps

Output: sequence notes and fixture recommendations

Reduces: slow builds and operator-dependent results

Pack-Out Standard

Checks: labels, kitting, protection, carton rules, shipment readiness

Output: packing standard and delivery checklist

Reduces: missing parts, damage, and inconsistent delivery

Fewer Surprises After Parts Are Made.

Risk before repetition.

One fit issue is manageable. Repeating it across 100 units turns into rework.

Controls, not guesses.

Torque, CTQ, fixtures, labels, and pack-out standards make the build repeatable.

One accountable path.

Part production, assembly, inspection, rework, and delivery stay with one team.

How It Works

Upload File

CAD, BOM, photos, failed samples, target quantity, and the assembly issue your team is seeing.

24H

Engineering Review

Engineers review fit, tolerance stack-up, fastening, bonding, QC gates, and pack-out risk within 24 hours.

24-48H

Control Plan

We define fit checks, CTQ dimensions, torque notes, fixture needs, QC gates, and pack-out requirements.

5-15d

Controlled Build

Parts are assembled, inspected, labeled, packed, and shipped with the agreed control standard.

What You Get

CTQ + interface notes

Controls for parts that must fit the same way every time.

Risk Inputs

CADBOMPhotosFailed samplesTorque targetPack-out needs

Fastening + bonding plan

Torque, inserts, adhesives, sequence, and rework criteria.

Control Outputs

CTQ listTorque notesFixture adviceQC checklistDefect logPack standard

Labeled shipment-ready units

Finished kits that arrive complete, protected, and consistent.

Failure Avoided

Loose fastenersFit reworkBatch variationSlow assemblyMissing partsShipping damage

ENGINEERING REVIEW

Describe Your Assembly Problem

Share your CAD, BOM, photos, failed samples, or describe the issue your team is seeing. Unionfab's engineers review the risk, validate assemblability, and return a clear engineering path before the batch starts.

Upload Your File