2022 Coexpair Catalog
26Pages

RTM & SQRTM ENGINEERING, PROCESS, MOLDS & EQUIPMENT

COEXPAIR SERVICES AND PRODUCTS Agility Aerospace Focus Multidisciplinary team Project-driven Local supply chain Since 1986 (Radius Eng.) Since 2006 (Coexpair) 15 Skilled Engineers EN9100 certified company Sr. Aerospace Engineers 4.0 Data management Coexpair - Composites Expertise for Aircraft – leads the market of RTM & SQRTM equipment and technologies in partnership with Radius Engineering, USA. Coexpair combines equipment development and fabrication with engineering of composite parts. Our shop is the right location for equipment demonstration, training and first part production....

About Us Made in Europe With local supply chain Founded in 2006 to answer growing need for RTM solutions, Coexpair is currently at the top of the European Aerospace Market with its workstation, injections system and mould solution. This was most recently recognised in the Spoilers A320 Spirit AeroSystems project where Coexpair team has developed, industrialize and installed mold tools and workstations for the serial production. Since 2006, the partnership with Radius Engineering (USA) allows Coexpair to have feedback on RTM and SQRTM equipment installed for more than 20 years. Based on this...

RTM & SQRTM PROCESSES Integrated Structure Close Mold Low Weight Complex shapes in one shot Tight dimensional control Net Shape Composite Shorter manufacturing cycle Lower cost RTM & SQRTM composite manufacturing processes allow to manufacture net shape composite in matched molds. The composite parts could feature high level of integration and controlled surfaces. Net-shape composites are an opportunity to improve performances: lower weight, lower cost, shorter manufacturing cycle. RTM (Resin Transfer Molding): • Uses dry reinforcement to make preform • Mold is generally in Steel or...

Figure 4: Typical cure cycle comparison between SQRTM and Autoclave

ENGINEERING SERVICES Aerospace focus Composite Part Design Optimization FEM/FEA Business Case analysis Design for manufacturing Material & Processes Allowable generation Plate manufacturing Sub-element testing Coexpair supports your composite developments, starting from functional requirements analysis to design for manufacturing (DFM). Analysis Our Skilled Engineers are experienced with Femap and Nastran FEA (static, stability, dynamic, thermal). They are distinguished by their hands-on experience of manufacturing (SQ)RTM parts themselves. Their engineering approach is built on...

Materials and Processes At the heart of our engineering services there are the selection of material and the set-up of process parameters for (SQ)RTM. Manufacturing of flat panels for coupons is a common task; tools are available in different sizes and thicknesses. More complex tools are used to validate the process and mechanical performances at higher level (sub-element level). Figure 7: sub element testing campaign

PROCESS DEVELOPMENT : FIRST PARTS Project Management Taylor-made service From idea to first part On time Delivery Collaboration Experts Customer-focus Hands-on Team between Demonstrator manufacturing Pluridisciplaniry Team (mould, equipments, proto) Coexpair can lead your project from design to the first parts manufacturing (no serial production). RTM A320 Spoiler –Spirit Aerosystems Coexpair provided: • Project Lead • Design • Engineering support • Molds • Equipment’s (Press & Injection system) • Training • Service support Figure 8: A320 Spoiler - first part manufacturing SQRTM Nose...

RTM Engine Lower Pressure Booster – Safran Aero Booster Coexpair and Radius provided: • Engineering support • Molds • First Parts Fabrication Figure 10: RTM Engine Lower Pressure Booster first part fabrication SQRTM Pressure Floor – S.A.B.C.A. Coexpair and Radius provided: • Engineering support • SQRTM Molds • First Parts Fabrication Figure 11: SQRTM Pressure Fl

RTM & SQRTM MOLDS Industrial solutions Taylor-made service More than 20 year of experience Serial production programs Solutions-oriented Serial production Demonstrator molds Specific design RTM/SQRTM Milestones (PDR, CDR) Subcontracting management Plates > subscale > full scale Skilled mold engineers from Coexpair are dedicated to mold design and manufacturing. They engineer, for your requirements, state of the art molds based on more than 20 year of experience in RTM and SQRTM process. RTM Molds The ambition of RTM mold design phase is to define molds that can produce a large number of...

Geometry and polishing optimized for easy cleaning Low scrap rate achievable when used in combination with Coexpair/Radius Workstations (injection and presses). Scrap rates of less than 1% is state of the art Project management by experienced team to give visibility to the customer (schedule, milestones, risk assessment) and the right follow-up of design quality and production. Delivery of high-quality mold on schedule is our mission Design Coexpair will design the mold according to the Coefficient of Thermal Expansion (CTE) of the mold and of the part. The resin injection port and vacuum...

Figure 14: Coexpair Machine Shops have the machine capacity which fits your need Finishing & Surface Treatment Our mold elements are carefully adjusted so each element fits in its location. This operation requires skilled operators who measure, compare and manually adjust the elements. Once all the mold elements fit perfectly together they are hand polished before surface treatment is applied. In case of Aluminum, hard anodizing gives to the mold element a scratch resistance equivalent to steel. Figure 15: RTM mold in aluminum with specific surface treatment

Packaging – Turn Key Our molds are carefully packaged to avoid any damage during transportation or unpacking at customer premises. The delivery includes the user manual with maintenance recommendation and all accessories needed to operate to tool immediately (seals, o-ring, screws, injection blocks, fittings, etc). Figure 16: Wooden Crate Packaging is Coexpair standard for mold transportation or storage. Handling Systems – Turn Key Depending on your needs and on the mold design, our molds can be delivered with custom handling devices. These devices are CE certified and would allow to handle...