Groupe Meloche — Based in Salaberry-de-Valleyfield, Quebec, Groupe Meloche is a leading manufactu

About

Founded on a culture of excellence and continuous improvement, Groupe Meloche has established itself as a key player in the North American aerospace supply chain. From its headquarters in Salaberry-de-Valleyfield, Quebec, the company operates as a strategic partner for major Original Equipment Manufacturers (OEMs) and system integrators in the aerospace, defense, and security industries. Groupe Meloche's mission is to provide integrated manufacturing solutions, from design to delivery, for the most critical components and sub-assemblies. Its history is marked by consistent investment in advanced technologies and skill development, ensuring sustainable growth and the ability to meet the highest industry standards. The core of Groupe Meloche's value proposition lies in its extensive technical capabilities. The company excels in complex multi-axis machining (3, 4, and 5-axis), enabling the production of parts with sophisticated geometries with exceptional precision and repeatability. Its unique "casting to solid" expertise provides an optimized alternative to machining parts from billets or forgings, reducing cycle times and material waste. The manufacturing engineering department works closely with clients to optimize Design for Manufacturability (DFM), ensuring efficient processes and controlled costs. This holistic approach is complemented by value-added assembly services, where machined components are integrated into ready-to-install sub-assemblies, thereby streamlining the customer's logistics. Groupe Meloche primarily serves the aerostructures and aeroengines markets. For aerostructures, the company manufactures vital structural components like fittings, ribs, and engine mounts. For aeroengines, it produces complex parts for the cold and hot sections of turbines, such as casings and supports, often machined from superalloys and titanium. These components are essential to the performance, safety, and efficiency of modern commercial and defense aircraft. As a Tier 1 and Tier 2 supplier, Groupe Meloche understands the rigorous demands of these markets and maintains quality certifications compliant with aerospace industry standards. Groupe Meloche's differentiation is built on its vertical integration model. By mastering the entire production chain—from engineering to machining, surface treatments, and assembly—the company offers its clients a single point of contact, increased agility, and simplified supply chain management. This internal synergy, combined with a strong culture of innovation, positions Groupe Meloche not merely as a subcontractor, but as a genuine manufacturing partner capable of tackling complex challenges and contributing to the success of its clients' aerospace programs.

Products

Composants d'aérostructures

Fabrication de pièces structurales de précision pour cellules d'aéronefs. Ces composants sont essentiels à l'intégrité, la performance et la légèreté des avions modernes.

Aerostructure components produced by Groupe Meloche are critical parts that form the airframe of an aircraft. These include elements such as wing ribs, fuselage frames, landing gear fittings, brackets, and engine mounts. Manufactured from high-performance materials like high-strength aluminum alloys and titanium, these components must meet extremely tight tolerances and rigorous structural strength and fatigue requirements. Groupe Meloche's expertise in complex 5-axis machining is essential for producing the sophisticated geometries and deep pockets typical of these parts, while optimizing the strength-to-weight ratio. Each component is manufactured to the exact specifications of OEMs for the commercial, business, and defense aviation markets. By supplying high-quality aerostructure parts, Groupe Meloche contributes directly to the safety, performance, and fuel efficiency of modern aircraft, ensuring every piece can withstand the extreme loads experienced during flight.

We primarily machine aluminum alloys and other lightweight, high-strength metals, in accordance with the technical specifications of the aerospace industry for structural components.

Yes, our process integrates machining, surface treatment, painting, assembly, and non-destructive testing, allowing us to deliver complete aerostructure sub-assemblies.

Composants d'aéromoteurs

Usinage de haute précision de pièces et composants pour moteurs d'avions. Ces pièces critiques sont conçues pour résister à des conditions extrêmes de température et de contrainte.

Groupe Meloche specializes in manufacturing high-precision aeroengine components, which are essential to the operation of aircraft gas turbines. The company produces a range of components for both the cold and hot sections of engines, including compressor and turbine casings, diffusers, bearing supports, and stator vanes. These parts are often machined from nickel-based superalloys (such as Inconel) or titanium, materials selected for their ability to withstand extreme temperatures and stress. Groupe Meloche's "casting to solid" expertise is particularly advantageous here, enabling the transformation of raw castings into finished components with maximum precision, thereby reducing costly material waste and machining time. Every part undergoes rigorous quality control to ensure flawless reliability, as the failure of a single component can have critical consequences. These parts are integrated into commercial, regional, and military aircraft engines, playing a vital role in the propulsion and overall efficiency of the aircraft.

It is our know-how in transforming raw cast parts (casting) into finished precision components (solid) through complex machining and finishing operations, an expertise particularly useful for engine parts.

Yes, we have the expertise and equipment required to machine nickel-based superalloys and other advanced materials required for hot-section aero-engine components.

Services

Usinage complexe

Service d'usinage de précision multi-axes pour la production de pièces à géométrie complexe. Ce service s'appuie sur un parc d'équipements technologiques et une forte expertise en programmation.

Groupe Meloche's complex machining service is the core of its manufacturing offer, providing high-precision parts to the aerospace and defense industries. Using a fleet of state-of-the-art CNC machines, including 3, 4, and 5-axis machining centers, the company transforms raw metal blocks (billets), forgings, or castings into finished components with sophisticated geometries. This service specializes in machining difficult materials such as titanium, Inconel, stainless steel, and aerospace-grade aluminum alloys. The process begins with CAD/CAM programming by skilled engineers, followed by meticulous execution on the shop floor where tolerances are maintained at the micron level. The deliverables are fully finished parts, ready for inspection and assembly. The primary advantage of this service is the ability to produce complex, monolithic components in a single setup (done-in-one), which improves structural accuracy, reduces part count, and shortens production lead times, delivering significant value to client aerospace programs.

We use multi-axis CNC machining centers, including 4- and 5-axis capabilities, to produce complex parts with high precision.

Assemblage à valeur ajoutée

Service d'assemblage de sous-ensembles mécaniques, intégrant des pièces usinées, des fixations et des composants achetés. Ce service clé en main simplifie la chaîne d'approvisionnement des clients.

Groupe Meloche's value-added assembly service extends its capabilities beyond the manufacturing of individual parts. It is an integrated service that transforms machined components into functional sub-assemblies ready for integration on the customer's final assembly lines. The process involves assembling Meloche-machined parts with purchased components, installing fasteners (rivets, screws), fitting bushings and bearings, and performing functional or pressure tests. This service is central to the company's vertical integration strategy. The deliverables are complete kits or sub-assemblies, such as an assembled engine casing segment or a complex structural fitting with all its hardware installed. The benefit for the customer is a major simplification of their supply chain: they receive a single functional module instead of managing dozens of individual parts. This reduces their inventory management costs, internal assembly operations, and ensures quality and compliance guaranteed by a single, reliable partner.

Yes, our value-added assembly service includes supply chain management for the purchased components necessary to complete the sub-assemblies.

Ingénierie manufacturière

Service d'ingénierie collaborative pour optimiser la conception des pièces en vue de leur fabrication (DFM). L'objectif est de réduire les coûts et les délais tout en maintenant la qualité.

Manufacturing engineering is a strategic service at Groupe Meloche, acting as the bridge between a client's design and optimized, cost-effective production. The engineering team collaborates with clients upfront to analyze part designs (Design for Manufacturability - DFM), suggesting modifications that can improve quality, reduce cycle times, and lower costs without compromising function. This service encompasses planning the entire manufacturing process, designing custom tooling and fixtures, developing advanced machining strategies, and programming the CNC machines. The deliverable is not a physical product, but a robust manufacturing plan and a validated production process, documented to ensure repeatability and compliance. The primary benefit is risk mitigation and accelerated time-to-market. By leveraging Groupe Meloche's expertise from the outset, clients ensure their components are produced in the most efficient and reliable way possible, transforming a supplier relationship into a true technological partnership.

By analyzing and optimizing part design for manufacturing (DFM), we simplify production processes, reduce machining times and material consumption, which translates into lower costs.

Industries served

Aéronautique / Aérospatiale
Aéromoteurs
Aérostructures
Défense et sécurité

What sets us apart

Intégration verticale (de l'ingénierie à l'assemblage)
Expertise « casting to solid »
Forte culture d'innovation et d'amélioration continue
Spécialisation dans l'usinage complexe multi-axes
Partenaire stratégique de la chaîne d'approvisionnement aéronautique

Frequently asked questions

Groupe Meloche's facilities, including its centers of excellence and administration, are located in Quebec, Canada, notably in Salaberry-de-Valleyfield, Beauharnois, and Bromont.

In addition to complex machining, we offer manufacturing engineering, surface treatment, painting, value-added assembly, and non-destructive testing.

Groupe Meloche relies on a rigorous quality system and in-house inspection capabilities, including non-destructive testing, to ensure every part meets the demanding standards and specifications of the aerospace industry.

The main specialization is the precision machining and manufacturing of components for aerostructures and aero-engines, serving the aerospace and defense industries.

Yes, Groupe Meloche has a supplier portal and is looking for partners. Information on how to become a supplier is available on their website.

Groupe Meloche primarily serves the aeronautics (aerostructures, aero-engines) as well as the defense and security markets, in Quebec and internationally.

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