Assembly sectors: automotive, aeronautics, aerospace, electronics, electrical engineering, etc.
Mastering assembly through industrial sciences
At RHEONIS, we help manufacturers to secure, accelerate and make their assembly operations more reliable by acting at the heart of the couple material-process : adhesives, sealants, resins, greases, inks, deposition pastes, coatings, encapsulating agents... Our multi-physical approach, fueled by hundreds of projects, aims for concrete results on the line as well as in the laboratory.
Why assembly concerns us
Assembly is a critical moment where product performance and robustness are at stake. We intervene when you encounter:
- application variability (irregular beads, stringing, foaming, bubbles, dripping)
- too narrow process windows (open, tack, setting/curing time, UV/thermal)
- random adhesion (poor wettability, cleanliness/surface, material compatibility)
- defects in appearance or geometry (troweling, sagging, viscosity recovery)
- difficult transfers and dosage (pumping, purging, storage, phase separation)
- Poor quality and alterations (leaks, peeling, premature aging)
Frequent challenges & levers for action
Subjects : rheology (viscosity, viscoelasticity, plasticity), wettability/surface energy, curing kinetics, stability (sedimentation, separation).
Process : deposition conditions (needle/nozzle, pressure, speed), environment (T°, HR), surface preparation (cleanliness, activation), robot trajectories.
Product : mechanical resistance/fatigue, waterproofing, chemical/thermal resistance, accelerated aging.
Levers : targeted formulation and additivation, process adjustments, robust control methods, surface preparation, adaptation of tools/consumables.
Our approach (pragmatic and transferable)
- Feasibility study : clarification of assembly functions, constraints and acceptance criteria.
- Material-process diagnosis : behavioral measurements (rheology, wettability), deposition tests, adhesion tests.
- Targeted experiments : test plans, prototypes/tools, field & lab tests.
- Optimization & security : operating windows, operating procedures, quality checklists.
- Transfer : protocols, training, control tools, start-up support.
Typical applications covered
- Bonding & structural bonding (multi-substrates, hybrids, primer)
- Waterproofing & Sealing (bead stability, anti-sag, thixotropy)
- Encapsulation / potting / underfill (electronics, sensors, windings)
- Coating / deposit (spray, extrusion, screen printing, jetting, slot-die)
- Assisted fixations (screwing/crimping with greases & anti-seize)
- Pre-assembly (positioning, tack, repositionability)
- Robotization & vision (stability of the line, continuity, recovery at the point)
Sectors we support in assembly
- Electronics & Electrical Engineering (encapsulation, underfill, glue/varnish)
- Mobility : automotive, aeronautics, railway (structural bonding, puttying)
- Energy : batteries, renewables (adhesives, thermal interfaces, sealing)
- Capital goods & machinery (assembly, lubrication, anti-seize)
- Health & Medical Devices (UV adhesives, skin-sensitive glues)
- Building & finishing work (sealants, glues, waterproofing)
Deliverables & results
- Material-process-product mapping and root causes
- Robust operating windows & settings
- On-line testing & quality control protocols
- Test recommendations
- Formulation/surface/tooling recommendations
- Team training (R&D, methods, production, quality)
What you gain
- Less rework and scrap, more capability
- Stable and repeatable deposits (bead stability, zero threading)
- Shorter industrialization cycles, prototypes → secure series
- Transferability between sites, teams and equipment manufacturers
Let's work on your assembly
Tell us about your parts, materials, constraints, and objectives. We will design an approach support ranging from rapid audit to transformation project.
Related actions :
- Problems solving
- Accelerate your innovations
- Measurements & tests (Rheology, tribology, adhesion, wettability)
- Case study: UV exposure setting for high-precision resin setting
We offer you an exploratory discussion (30–45 min) to qualify your issue and consider the first courses of action.