Missile Control Surface Actuator Arm

Name: Machined Fin Actuator Arms for Missile Flight Systems - Frigate
Price: 249.00 USD
Availability: InStock

Missile Control Surface Actuator Arm is designed to retain mechanical integrity under combined thermal and dynamic stress. Material selection accounts for elevated skin temperatures due to aerodynamic heating and pressure loading at transonic and supersonic speeds. Closed-form FEA confirms yield margin under combined bending and torsional loads without compromise to control linkage geometry.

Material Specification

AISI 4340, SAE AMS 6414, or equivalent defense-grade alloy steel

Dimensional Accuracy

±0.005 mm (critical diameters), ±0.01 mm (non-critical)

Surface Finish

Ra ≤ 0.8 μm (functional surfaces), Ra ≤ 1.6 μm (non-functional)

Hardness Requirement

35–45 HRC (core hardness), 50–55 HRC (case if hardened)

Heat Treatment

Quenched and tempered to meet MIL-S-5000 or equivalent

Product Description

Missile Control Surface Actuator Arm utilizes low coefficient-of-expansion alloys with thermally matched joints to ensure no displacement-induced backlash. Component geometry avoids thermal mismatch at bearing interfaces, preventing loss of actuation resolution in rapid altitude transition or asymmetric heating conditions during reentry.

Tolerance Levels

ISO 286 IT6 for fits, IT7 for non-critical features

Certification Standard

MIL-STD-2035, AS9100 Rev. D, NADCAP accredited

Non-Destructive Testing (NDT)

100% MPI per ASTM E1444, UT per ASTM E428

Corrosion Resistance

Cadmium plating (MIL-DTL-13924 Class 3) or Nitriding (AMS 2759/10)

Load-Bearing Capacity

Static load ≥ 50 kN, fatigue life ≥ 10^6 cycles at 30 kN

Technical Advantages

Surface hardness and wear resistance of the Tank Turret Trunnion Pin are enhanced through advanced treatments such as gas nitriding, induction hardening, or chrome plating. These processes create a hardened surface layer with compressive residual stresses that significantly improve resistance to adhesive and abrasive wear while reducing friction coefficients in the trunnion interface. Surface roughness is controlled to a Ra value below 0.2 µm for optimized tribological performance.

Tank Turret Trunnion Pins are finished using CNC grinding and turning to achieve dimensional tolerances within ±0.005 mm and geometric tolerances such as cylindricity and concentricity maintained below 0.01 mm. Such precision ensures exact fit with trunnion bearings, preventing axial and radial play that can degrade turret accuracy. Dimensional consistency is verified through coordinate measuring machine (CMM) inspection protocols.

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Industry Applications

Main Battle Tanks

Supports turret rotation and recoil absorption under high mechanical loads during firing and maneuvering operations.

Armored Personnel Carriers

Enables precise turret articulation with high fatigue resistance for sustained combat mobility and stability.

Self-Propelled Artillery

Facilitates controlled elevation and traverse of heavy gun mounts, withstanding dynamic recoil forces.

Combat Engineering Vehicles

Provides robust pivot points for turret-mounted tools and weapons in harsh operational environments.

Infantry Fighting Vehicles

Maintains turret alignment accuracy under continuous shock and vibration during rapid tactical maneuvers.

Reconnaissance Vehicles

Ensures reliable, smooth turret movement with minimal maintenance in extreme temperature and terrain conditions.

Fatigue Life and Crack Propagation Resistance

The Tank Turret Trunnion Pin design incorporates microstructural refinements and surface compressive stresses to increase fatigue limit beyond 800 MPa under variable amplitude loading. Non-metallic inclusions are minimized during steelmaking to reduce crack initiation sites. Ultrasonic inspection and dye penetrant testing identify surface or subsurface flaws that could reduce service life under repeated load cycles.

Corrosion resistance is addressed through alloy selection and application of surface coatings resistant to oxidation, salt spray, and abrasive contaminants typical of battlefield environments. The Tank Turret Trunnion Pin coatings are qualified against standards such as ASTM B117 salt fog testing to ensure performance over extended deployment periods. Additionally, passivation and sealing processes prevent intergranular attack.

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How does Frigate ensure the material quality of Tank Turret Trunnion Pins for high-stress applications?

Frigate sources alloy steels that meet strict chemical composition requirements for strength and toughness. Each batch undergoes spectrochemical analysis to verify alloy content and uniformity. Heat treatment processes are tightly controlled to achieve the specified hardness and microstructure. This ensures the pins consistently perform under high mechanical loads without failure.

What manufacturing techniques does Frigate use to maintain dimensional precision in Tank Turret Trunnion Pins?

Frigate employs CNC grinding and turning with precision controls to maintain tolerances within ±0.005 mm. Coordinate Measuring Machines (CMM) inspect every critical dimension for cylindricity and concentricity. This level of precision minimizes mechanical play and ensures turret stability. Strict process control during machining guarantees repeatability across production runs.

How does Frigate test Tank Turret Trunnion Pins for fatigue resistance before delivery?

Frigate performs accelerated cyclic loading tests simulating operational stress conditions to evaluate fatigue life. Non-destructive testing methods such as ultrasonic inspection detect micro-cracks or internal defects. These inspections confirm structural integrity before shipment. This process ensures pins endure repeated turret movements without premature failure.

What surface treatments does Frigate apply to improve wear resistance and corrosion protection on Tank Turret Trunnion Pins?

Frigate utilizes processes like gas nitriding and hard chrome plating to form a hardened surface layer. These treatments provide compressive residual stress that inhibits crack initiation and surface wear. Coatings are tested for salt spray resistance in accordance with ASTM B117 standards. This combination enhances durability in harsh environments.

How does Frigate maintain traceability and quality assurance in Tank Turret Trunnion Pin production?

Each pin is marked with a unique batch and heat number linking it to raw material certifications. Frigate implements ISO 9001-compliant quality management systems throughout manufacturing. Detailed inspection reports accompany every shipment to document dimensional and metallurgical compliance. This ensures full traceability and accountability for every component delivered.

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

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