Interface requirements
Fits, tolerance stack-up, orientation, thread protection, sealing faces and serviceability.
Ready for integration
Product Assembly Services
Controlled component assembly, fastening, fit verification, functional checks and protected packaging according to project requirements.
Define the deliverable
What Does the Assembly Include?
Identify the components, operations and verification required for the delivered assembly. Feasibility and responsibility for each item are confirmed during project review.
- Mechanical joining
- Fastening, pressing and insert installation with defined interfaces and applicable joining parameters.
- Bonding & subassembly
- Specified adhesive or subassembly operations, sequence, preparation and verification.
- Assembly verification
- Completeness, orientation, fit and project-specific visual or functional checks.
- Protected delivery
- Cleaning, identification, part separation, packaging and required release records.
Controlled inputs
Confirm the BOM and Component Sources
Review manufactured, purchased and customer-provided items separately. Supply responsibilities, approved sources and incoming requirements must be agreed before the assembly scope is released.
- Assembly definition
- Controlled assembly drawing and BOM, item quantities, component revisions and the required delivered configuration.
- Component sources
- Identify who supplies each item, any approved-source restrictions and the records required with delivery.
- Incoming status
- Agree identification, inspection status, lot traceability, quantities, packaging and protected handling.
- Change control
- Obtain the required approval for substitutions, revision changes and changes to the controlled assembly sequence.
Identify missing, provisional or nonconforming items before use. Agree disposition and any rework authorization; receipt alone does not establish that an item is released for assembly.
Review incoming inspection & traceability →
Interfaces · Joining · Verification
Plan the Assembly Controls
- 1. Fastener: specify type, orientation and required tightening control.
- 2. Insert: identify fit, insertion depth and applicable force or verification requirements.
- 3. Seal: define location, orientation, surface condition and any required leak test.
- 4. Protected surface: identify cosmetic, sealing or electrical-contact areas and handling requirements.
Joining parameters
Specify applicable torque, press force, insertion depth, adhesive preparation or cure conditions and verification.
Inspection & error prevention
Identify required presence, orientation, dimension, movement or functional checks, and measures against incorrect installation.
One controlled sequence
Verify the Assembly and Release the Delivery
- 01
BOM & revision release
Confirm the assembly definition, component revisions, supply responsibilities and open decisions.
- 02
Incoming status & kitting
Check identification, quantities and release status; segregate items requiring disposition.
- 03
Controlled assembly
Use the approved sequence and joining controls; protect interfaces and cosmetic surfaces.
- 04
In-process verification
Perform specified checks and record required results; obtain authorization for rework or changes.
- 05
Final verification
Confirm completeness, appearance, critical interfaces, labels and required functional test results.
- 06
Identification & packaging
Apply traceable identification, approved protection and packaging; review the required release records.
Agree the functional acceptance
Define required tests, conditions, limits, inspection stage, sampling and records. Review the test method and equipment needs for the project.
Protect the receiving and line-side condition
Review part separation, corrosion and cleanliness risks, delicate features, applicable electrostatic protection, transport and customer unpacking or line-side handling.
Detailed assembly and packaging reference
Process Applications
Product assembly brings manufactured and purchased components together into a controlled deliverable. The appropriate scope may include mechanical fastening, pressing, inserting, bonding, subassembly, identification, functional checks, cleaning, and protected packaging.
Part Design Priorities
Assembly planning begins with interfaces and sequence. Fits, stack-up, orientation, torque or force requirements, thread protection, cosmetic handling, error-proofing requirements, cleanliness, serviceability, and packaging must be reviewed before production release.
Pre-Quotation Review
The RFQ should include the assembly drawing and bill of materials, where available, controlled component revisions, approved sources where required, fastening and joining specifications, acceptance tests, traceability, labeling, packaging, and forecast quantity.
Production and inspection
Work instructions, incoming status, component identification, assembly sequence, in-process checks, final functional or visual verification, nonconformance handling, and release records are defined according to project risk and agreed requirements.
Define the delivered assembly
Assembly scope is defined by the customer-controlled bill of materials, drawings, work instructions, approved sources, and acceptance criteria. Depending on the project, the route may include inserts, bearings, seals, gaskets, fasteners, pins, adhesives, labels, cables, or purchased subcomponents. No component substitution or sequence change should be assumed without approval.
Assembly Controls
- Revision and lot status for manufactured and purchased components
- Orientation and error-proofing for parts that can be installed incorrectly
- Defined torque, press force, insertion depth, cure condition, or other joining parameter where required
- Protection for threads, sealing faces, grounding areas, finishes, and cosmetic surfaces
- In-process visual, dimensional, presence, movement, leakage, electrical, or functional checks as specified
- Nonconformance segregation, rework authorization, and traceability to the released assembly
Verification & Packaging
Final review can combine completeness, appearance, interface dimensions, label content, and project-specific functional tests. Packaging is part of the process: part-to-part contact, corrosion risk, cleanliness, electrostatic protection, sharp or delicate features, transport route, lot identification, and customer line-side handling should be considered before the pack is approved.
What should an assembly RFQ include?
Provide the assembly drawing and bill of materials, component revisions, sourcing requirements, joining specifications, torque or force values, functional tests, labeling, traceability, packaging and quantities.
How are purchased components and substitutions handled?
Identify approved suppliers, permitted alternatives and customer-supplied components in the project requirements. Proposed substitutions require approval before use.
Which assembly checks should be specified?
Specify the checks needed for the product, such as component presence and orientation, interface dimensions, fastening torque, insertion depth, leak testing or other functional tests. Define the method, acceptance limits and reporting requirements.
Engineering resources
Prepare the Assembly and Inspection Review
RFQ Checklist for Die Casting, CNC Machining, and Assembly
A complete RFQ checklist covering engineering files, revisions, demand, materials, critical features, finishing, inspection, assembly, and delivery.
Read engineering guide →Building a Practical Inspection Plan for Cast and Machined Parts
Translate drawing requirements and product risk into incoming checks, first-article inspection, in-process controls, final verification and shipment records.
Read engineering guide →How to Select a Surface Finish for Metal Parts
Select and specify finishes for cast and machined parts using material compatibility, service conditions, functional requirements and appearance criteria.
Read engineering guide →Project Planning Notes
Assembly control plan
Coordinate components, assembly checks and packaging.
The BOM, revisions, joining parameters, error-proofing, functional checks, identification, and handling define the delivered assembly.
- Controlled components
- Assembly drawing, BOM, component revisions, approved sources, incoming status, substitutes, and lot identification.
- Joining and sequence
- Fastening, insertion, pressing, bonding, orientation, torque or force, cure, and protected functional surfaces.
- Verification
- Presence, orientation, appearance, movement, leakage, electrical, dimensional, or other project-specific functional checks.
- Delivery requirements
- Cleaning, labels, traceability, corrosion or ESD protection, part separation, returnable packaging, and release records.
Production Release Workflow
- BOM review
- Incoming status
- Kitting
- Controlled assembly
- In-process checks
- Functional verification
- Identification
- Packaging
BOM & assembly scope
Review Your Assembly Project
Submit the assembly definition and available component records. Identify provisional requirements so engineering can clarify the scope and next steps.
Include with your RFQ
- Assembly drawing, BOM, quantities and controlled component revisions.
- Component sources, supply responsibilities and incoming requirements.
- Joining specifications, sequence, critical interfaces and protected surfaces.
- Functional tests, acceptance criteria and required inspection records.
- Traceability, label content, cleaning and packaging requirements.
- Batch/annual demand, requested delivery and unresolved decisions.