and cost-effectiveness in military equipment components, the core body of this aluminum alloy military product is manufactured from 7A04-T6 high-strength Grade A aluminum alloy (conforming to GB/T 3191-1998) via high-pressure precision casting. It is then processed through multi-axis CNC machining centers equipped with precision hydraulic fixtures and ultra-precision tools, undergoing multiple refined machining steps.
The product’s machining accuracy meets military-grade standards, with general linear and angular tolerances following GB/T 1804-m, and general geometric tolerances adhering to GB/T 1184-H. Key geometric tolerances are controlled within 0.02 mm, and the machining accuracy can reach as tight as ±0.0015 mm. Surface roughness achieves high-precision levels such as Ra1.6 and Ra3.2. Edges may feature radii smaller than R0.2, intersecting holes are meticulously deburred, and surfaces are free from scratches or compression damage. Surface treatment complies with the Ct·P WJ537-2007 standard without compromising the specified surface roughness, ensuring military-grade quality from detail to entirety.
The use of this product enables core components of military equipment to achieve stable performance for over 2 years or 3 million cycles, meeting the long-term operational demands of military equipment under complex working conditions. In contrast, the use of similar products from non-compliant manufacturers may lead to issues such as a service life of less than 1 million cycles, assembly difficulties, and fractures due to insufficient strength. These can further cause critical failures like piston seizure and gas leakage, posing serious safety risks and economic losses to the development, production, and practical application of military equipment.
This product can be used to manufacture relevant military components such as housings and cylinders. Processing equipment includes 3-axis, 4-axis, and 5-axis CNC milling centers and CNC drilling-tapping centers. In addition to 7A04-T6 aluminum alloy, it can also process commonly used military metals such as steel, stainless steel, and titanium, as well as specialty materials like fiberglass and PEEK. Surface treatment options include various military-grade processes such as electroplating, anodizing, and nitriding. The inspection process utilizes high-precision equipment such as Zeiss coordinate measuring machines and 3D scanners for comprehensive dimensional verification, ensuring every product complies with the rigorous standards of military equipment.
Precise tolerance features on these kinds of similar housings we can deliver:
With drawing: as low as
Machining accuracy:: + / – 0.0015mm
Surface roughness:: Ra0.8, Ra0.4
Parallelism: : + / – 0.0075mm
Flatness: : + / – 0.015mm
Verticality:: + / – 0.0075mm
Diameter:: + / – 0.003mm
Roundness: : + / – 0.0025mm
Straightness:: + / – 0.005mm
Profile:: + / – 0.008mm
Concentricity:: :: + / – 0.006mm
No drawing: ISO 2768 medium/GB/T 1804 / EN 22768-1/ASME B4.1
Relevant or similar Products: housings, cylinders, covers, valves, bodies, cases, bases, brackets, bearing seats, etc.
Machines:
3-axis, 4-axis & 5-axis CNC milling machine centers, CNC drilling tapping centers, Complex centers.
Machinable materials:
Aluminum, steel, stainless steel, copper, Iron, glass fiber/GRP, PP, POM, Titanium, PEEK, etc and other machinable materials (metal/plastic).
Surface treatment:
Electroplating, QPQ, chrome plating, phosphating, autocatalytic nickel coating, nitriding, black oxide, anodizing, electrophoresis, vacuum coating, powder coating, metal drawing, sandblasting, polishing, etc
Inspection equipment:
ZEISS CMM (Coordinate measuring machine), Renishaw’s Equator versatile gauge, 3D Scanner, Projector, Caliper, Micrometer, Roughness tester, Hardness gauges, Pressure gauges, Dial gauges, Dynamometers, Pneumatic gauges, GO/NOGO gauges, and various self-made inspection tools etc.
