Engine mounts, chassis parts, and machined components for assembly lines.
Thrust reverser latches, bolt carrier assemblies, and fasteners for aircraft and defense sector.
Connector housings, EMI shielding brackets and lightweight chassis for industrial electronics parts.
Precision housings, actuator frames, and armature linkages for automation systems.
Metal frames, brackets, and assemblies for appliances and home equipment.
Orthopedic implant screws, surgical drill guides and enclosures for sterile environments.
Solar mounting parts, wind turbine brackets, and battery enclosures.
Valve bodies, flange blocks, and downhole drilling components.
Rudders, propellers and corrosion-resistant components for offshore and deck-side systems.
CNC machining delivers micron precision and tight tolerances for complex geometry.
Optimized for mass production, high-volume machining utilizes advanced automation and process control to ensure consistent quality, tight tolerances, and superior cost efficiency at scale.
Designed for precision-driven applications, low-volume machining supports prototype development and limited production runs with high accuracy, rapid iteration, and reduced tooling requirements.
To meet these demands, designs use cold-worked, high-strength 7075-T6511 or equivalent aluminum extrusions, offering yield strengths above 470 MPa and elongation over 11% for ductile failure resistance. Finite Element Analysis (FEA) verifies uniform stress distribution across mounting holes and flange interfaces, preventing local yielding during 16g deceleration loads.
Consistent dimensional tolerances are required to ensure correct installation of seats and monument attachments without manual fitting. Manufacturing methods include 5-axis CNC contour milling followed by CMM verification of key features such as bolt-hole spacing, slot dimensions, and longitudinal flatness. Pitch and alignment tolerance across the rail length are held within ±0.05 mm, with slot width maintained within ±0.02 mm to avoid bolt misfit or rattle. These tight tolerances support standardized installation without variation across production lots or reworks during MRO events.
Aircraft Seat Rails are subjected to high-cycle fatigue loading from repeated takeoffs, turbulence, and differential thermal expansion. Fatigue resistance is enhanced through stress-relieved machining processes and controlled surface roughness (Ra < 0.8 µm) to delay crack initiation. Critical areas near mounting holes are cold-expanded or shot-peened to induce residual compressive stresses. Qualification includes full-scale fatigue coupon testing using truncated spectra derived from typical 60,000 flight cycles. Crack growth is modeled using da/dN data specific to the alloy and validated by NASGRO simulations, ensuring no crack propagation during service life.
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Provides structural anchoring and load transfer path for economy, business, and first-class seating under static and dynamic load conditions.
Enables rigid interface for galleys, lavatories, and cabin dividers with precise slot indexing for modular attachment and reconfiguration.
Supports quick-deploy seat systems in transport aircraft with standardized rail profiles and fastener compatibility for high-load occupant retention systems.
Facilitates customized seat and furniture layouts with tight tolerance control for high-end reconfiguration and precision seating alignment requirements.
Provides structural interface for securing medevac stretchers and life-support equipment under transport-grade dynamic load and vibration environments.
Anchors foldable or fixed crew seating systems at cabin doors or bulkheads with localized reinforcement and shear-resistant mounting points.
Load transfer through seat fasteners requires rails to maintain dimensional rigidity under bending and torsional loads. Finite element optimization focuses on flange geometry and web thickness to preserve second moment of area without introducing stress risers. Joints are modeled for bearing, net-section, and tear-out failure modes using MIL-HDBK-5 data, and hole edge distances are controlled to exceed 2.5x fastener diameter to eliminate joint shear failures.
Rail slot profiles and hole indexing patterns follow ARINC 628 Part 2 standards to support rapid cabin layout changes. Compatibility with standard M6 or ¼-turn fittings enables tool-less removal and replacement of seats and monuments. Aircraft Seat Rails include reference datum markings and locator notches for alignment during installation, ensuring repeatable positioning without re-drilling or manual measurements.
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Frigate uses high-precision CNC machining with temperature-controlled environments to avoid thermal distortion during rail milling. Slot straightness is verified with laser-based linearity scanning, holding deviation under 0.1 mm across 2-meter rails. Flatness across the mounting face is controlled using multi-pass face milling followed by CMM inspection. This ensures full contact with floor structures without stress concentrations or gap-induced loosening.
Frigate applies Type III hard anodizing with 25–50 µm coating thickness for barrier protection in humid cabin environments. The process includes acid etching, controlled anodic oxidation, and sealed pore finishing to prevent moisture ingress. Salt spray resistance is validated to exceed 1000 hours per ASTM B117 standards. This makes the rails suitable for both metallic and composite floor interface applications.
Frigate performs nonlinear static and dynamic simulations to replicate 16g forward and 1.5g lateral crash loads per FAA 25.562. Finite element models include seat leg interfaces, slot engagement, and bolt preload conditions. Material yield, tear-out resistance, and joint behavior are checked using real test data and validated inputs. Physical test rigs are also used for qualification if customer programs require it.
Frigate includes full AS9102 First Article Inspection Reports, COC for base material, and anodizing batch certificates. Each rail is serialized and traceable to raw material heat lot and machining batch. Dimensional inspection records include slot pitch, hole spacing, and profile geometry checks. This supports direct integration into OEM airframes without additional incoming inspection.
Frigate collaborates with engineering teams to model non-standard rail cross-sections for VIP, cargo-combi, or medical cabin programs. Custom extrusion dies are designed and FEA-optimized for both strength and interface compatibility. CNC programs are tailored for unique hole patterns or rail lengths based on aircraft layout. This enables cabin flexibility without compromising structural or regulatory compliance.
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10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.
9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ
FRIGATE is a B2B manufacturing company that facilitates New Product Development, contract manufacturing, parallel manufacturing, and more, leveraging its extensive partner networks.
Need reliable Machining for your next project? Get in touch with us today, and we’ll help you find exactly what you need!
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