The structural characteristic of aircraft spare parts
The structural characteristic of typical aircraft spare parts is thin wall structure, form is complex, deformation bevel changes outside big, the appearance is hyperboloid more, requirement figuration is accurate. To reduce plane weight, the maneuverability that adds an airplane and raise effective load and range, undertake light quantify a design, use new-style light qualitative data extensively.
To raise spare parts intensity and working dependability, basically use integral wool blank and structure of integral Bao Bi. Use aluminium alloy, titanium in great quantities now alloy, high temperature resistant alloy, high strenth steel, composite material. The Bao Bi with complex structure, beehive not only form is complex, and many aperture, cavity, groove, reinforcement, craft tigidity is poorer.
The plane makes the typical part that the need in building machines with the machine tool
The plane makes the typical part that the need in building machines with the machine tool, the crucial part that basically has plane airframe structural member and engine two parts:
1. Spare parts of model of airframe structural member
The typical spare parts of plane airframe structural member has bridge, muscle, costal region board, casing, wainscot, connect, slippery course to wait for kind of spare parts. With compressed, long and thin, much antrum with ultrathin wall the structural member that lie between casing is given priority to. Semifinished product is plank, forging and profile of aluminium alloy extruding. Overall material utilization factor is 5%-10% left and right sides only, amount of raw material purify is large. Current, domestic aircraft spare parts, 90% above are aluminium alloy, a few is stainless steel and titanium alloy steel, and integral structural member is increasing, use the development way that composite material will be henceforth.
The structural characteristic of spare parts of model of airframe structural member
(1) outline size is larger and larger. Like some bridge kind the length of the spare parts already achieved 13m.
(Of 2) spare parts change change of bevel angle angle is big, ultrathin wall. Measure of the smallest part has 0.76mm left and right sides only, so, treatment craft tigidity is poor.
(The structure of 3) spare parts is more and more complex, a lot of spare partses use integral structure.
(The dimension precision of 4) spare parts and exterior quality demand are higher and higher, if have the drawback such as some of burr that after the spare parts is machined, appears, do not allow to use artificial purify.
Place of spare parts of model of treatment plane airframe requires main equipment
(3 coordinate of 1) machining center, be like machining center of vertical of large dragon door;
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The plane makes the typical part that the need in building machines with the mac
From; Author:Stand originally