For many years now, ORATECH has specialized in cutting and machining metal, composite and plastic coupons.
Due to the strong market demand for composite coupons, particularly in aeronautics, we at ORATECH have organized ourselves to fully meet the expectations of customers (laboratories and contractors) in terms of volume management, quality and responsiveness.
Complementary services such as sheet manufacturing, stub bonding as well as mechanical, physico-chemical, and micro cutting tests are provided by our historical partners. The supply chain is fully integrated and allows for very short lead times with optimum quality.
Machined materials: Stainless steel, Steel (S235, S335, etc.), Inconel, Titanium, Aluminum and more.
We also produce test pieces for CT, CTOD and KCV tests in accordance with the specific procedures and technical specifications.
Rectangular coupon
Barbell coupon
Cylindrical coupon
Angle iron coupon
Groove coupon
Tensile tests
Compressive tests
Flexibility tests
Wrench tests
ATIM,
NAS 2010
NSA 2110
DIN-EN-2850
ISO 527, 14125, 14126, 14129, 14130,…
ISO 6892-1, ISO 148,…
The machining of composite coupons for hydrogen tanks enables to perform mechanical and/or physico-chemical characterization testings. It can be used for prototyping, expertise or recurring sampling in manufacturing.
It allows to check the presence of material defect (for example: air bubble, lack of fibre and/or resin…) and to validate mechanical characteristics of the tank cylinders.
We start by cutting out cylinder sections (in washers) of the hydrogen tank. Then, we sample coupons in the longitudinal and radial direction, with or whitout thickness surfacing, in order to get flat coupons.
We have the possibility to stick resin beads in order to recover the curvature and performed testing with no need to impact the material.
Finally, we cut out the part containing the fitting (multi-materials) using water jet cutting. This one enables us to check the correct assembly of the metallic fitting with the composite cylinder of the hydrogen tank.
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