Aircraft engine model manufacturer

Record of Aircraft Engine Model Production

1、 Project positioning and process design

This production focuses on the precise restoration of modern turbofan engines, achieving three core breakthroughs: first, solving the problem of micro forming titanium alloy blade groups; second, processing the gradual transition of metal oxidation color in the high-temperature section; and finally, completing the low friction operation test of the rotor system. All processes are based on the aviation maintenance manual as a reference standard.

2、 Staged production process

Core component forming stage

The engine body is shaped using a layered construction method, and the fan casing is CNC milled from aviation aluminum plate, with honeycomb shaped reinforcement ribs manually carved on the inner wall. The high-pressure compressor section adopts the lost wax casting process, injecting tin bronze solution into a 3D printed resin mold, and obtaining a blade group with hollow cooling holes after cooling. The combustion chamber is manually shaped into a flame tube using copper foil, and a natural oxide layer is produced through ammonia fumigation treatment.

Surface refinement stage

Spray seven layers of gradient paint on the cold end components: first use matte black as a base, then alternate between semi transparent metal blue and gun metal colors, and finally use ultra-fine diamond powder to remove the engine's unique wear marks. The high-temperature section adopts a hot coloring process, locally heating the titanium alloy parts with a propane spray gun, and producing a rainbow effect from gold to deep blue through temperature control. All pipeline interfaces are wrapped with 0.2mm copper wire and soaked in rust colored stain solution to simulate long-term use.

Dynamic integration stage

The rotor system is equipped with miniature ball bearings, and the main shaft is coupled with a magnetic levitation base, which can achieve continuous rotation for 20 seconds without stopping with a light touch of the finger. The reverse thrust device is driven by shape memory alloy, and when heated to 65 ℃ with a hair dryer, the actuator can complete the deployment retraction cycle within 3 seconds. The lighting system arranges a fiber matrix inside the exhaust nozzle and simulates the color temperature changes of the exhaust flame under different thrust states through PWM dimming modules.