Diploma in Trim Processes, Joining and Perceived Quality
Online postgraduate diploma of 800 hours in trim processes, joining and perceived quality: 8 modules covering interior trim components, trim manufacturing processes, joining technologies, perceived quality, decorative surfaces (VDA 16), process quality (IATF 16949, VDA 6.3) and squeak and rattle, with an assigned technical tutor.
Take the controls.
Run a real engineering trade-off from this field. Move the sliders, watch the model react in real time and beat the challenge.
What you will be able to do
Describe the typical components and materials of interior trim.
Select trim manufacturing processes according to requirements and cost.
Design reliable, repairable and noise-free joints.
Assess the perceived quality of an interior using objective criteria.
Apply the VDA 16 requirements for decorative surfaces.
Manage process quality with APQP, PPAP, FMEA and VDA 6.3.
Prevent and correct squeak and rattle issues.
Who it's for
- Interior product engineers responsible for trim components.
- Trim process engineers in moulding, wrapping and lamination.
- Perceived quality engineers who audit gaps, finishes and touch.
- Supplier quality engineers working with APQP and PPAP.
- Product audit technicians carrying out customer-style audits.
- Interior NVH engineers dealing with squeak and rattle.
- Engineering or science graduates looking to enter the automotive industry.
What you'll work with
- IATF 16949 (automotive quality management system)
- VDA 16 (decorative surfaces of interior and exterior parts)
- VDA 6.3 (process audit)
- ISO 9001 (quality management systems)
- UNECE R21 (interior fittings)
- FMVSS 302 (flammability of interior materials)
- ISO 1101 (geometrical tolerancing)
- CATIA V5
- Siemens NX
- Autodesk Moldflow
- Minitab
- Polyworks
8 modules
1.1Instrument panel, console and door panels1.2Pillar trims and headliners1.3Seats and upholstery1.4Carpets and parcel shelves1.5Substrates: PP, ABS, PC/ABS and natural fibres1.6Leathers, PVC, TPO and microfibres1.7Padding foams1.8Architecture of parts and sub-assemblies1.9Interior benchmarking1.10Case study: teardown of a door panel
2.1Injection moulding and mould texturing2.2Slush moulding and rotomoulded skins2.3In-mould foaming and polyurethane2.4Vacuum thermoforming2.5Press lamination and laminating2.6Leather wrapping and stitching2.7Low-pressure injection with textile2.8Soft-touch painting2.9Grain quality and texture replication2.10Lab: defect analysis of an injection-moulded part
3.1Clips, fasteners and anchors3.2Screws and nuts in plastic3.3Ultrasonic welding3.4Hot-plate and infrared welding3.5Hot riveting and heat staking3.6Contact and hot-melt adhesives3.7Double-sided adhesive tapes3.8Detachable joints for repair3.9Pull-out and retention force3.10Practical exercise: design of a clip system with pull-out test
4.1Dimensions of perceived quality4.2Gap and flush between parts4.3Alignment of character lines4.4Colour and gloss uniformity4.5Touch and surface pressure4.6Squeak and rattle noises4.7Seams and material transitions4.8Perceived quality in different markets4.9Customer-style product audits4.10Workshop: perceived quality audit of a console
5.1Decorative surfaces according to VDA 165.2Visual assessment in a light booth5.3Acceptable defects by zone5.4Limit samples and masters5.5Scratch and gloss requirements5.6Ageing and colour stability5.7Interior fittings under UNECE R215.8Flammability per FMVSS 3025.9Emissions and odour5.10Case study: defect catalogue for a decorated part
6.1Advanced product quality planning (APQP)6.2PPAP and part approval6.3VDA 6.3 process audit6.4Process FMEA6.5Control plans6.6Process capability (Cpk)6.7In-line inspection and machine vision6.8Complaint management6.9Continuous improvement at suppliers6.10Practical exercise: process FMEA for leather wrapping
7.1Squeak and rattle mechanisms7.2Incompatible material pairs7.3Clearances and preload in joints7.4Felts, flocking and anti-noise materials7.5Shaker table testing7.6Friction and contact simulation7.7Subjective road evaluation7.8Correction during production7.9Prevention at the design stage7.10Lab: squeak and rattle bench test
8.1Component selection8.2Requirements analysis8.3Materials and process concept8.4Joint design8.5Perceived quality analysis8.6Quality control plan8.7Prototype and evaluation8.8Improvement proposals8.9Report and presentation8.10Final project: final review with the tutor
How you'll learn
100% online training on the SEIUM campus, with downloadable material, recorded classes and an assigned technical tutor. There is no fixed timetable: you progress at your own pace within the intake, so the programme is compatible with work.
Each module combines theory, guided reading of the original standard and applied exercises. The working software is CATIA V5, Siemens NX, Autodesk Moldflow, Minitab and Polyworks, in free, academic or evaluation versions. Testing is studied through real procedures for perceived quality audits in a light booth, pull-out tests on clips and joints, and squeak and rattle tests on a shaker table. Assessment is continuous by module plus the final project.
Standards covered: IATF 16949, VDA 16, VDA 6.3, ISO 9001, UNECE R21, FMVSS 302, ISO 1101.
Build it end to end
Your final project follows the real engineering workflow, step by step, reviewed by your tutor.
Where this takes you
Requirements
- Prior technical training or professional experience in the sector. No university degree is required.
- Internet connection and a computer able to run the programme software.
- English sufficient to read technical standards.
Ready to start?
Send your application today. Our admissions team replies within 72 hours with your study plan and funding options.
Frequently asked questions
The programme totals 800 hours over 6–8 months. You set your own pace within each intake, and your tutor helps you plan the workload around your job.
You work with CATIA V5, Siemens NX, Autodesk Moldflow, Minitab and Polyworks, using free, academic or evaluation versions. Your tutor indicates the free alternative wherever one exists.
A SEIUM Institute diploma, awarded on passing the continuous assessment and the final project. It is SEIUM's own qualification, not an official state degree; its recognition depends on the programme completed and the regulations of each country.
Yes. Modules passed are recognised in a higher programme in the same area (postgraduate diploma or master's). Ask about the recognition policy when you enrol.
Prior technical training or professional experience in the sector (no university degree is required), a computer able to run the programme software and English sufficient to read technical standards.
Start dates are set by SEIUM's faculty for each intake. Our admissions team will confirm the next available date when you apply.
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