Titanium alloy sheet metal processing, stamping molding process

1. It is a metal stamping process for titanium alloy sheets.

• (1) The punched TC4 titanium alloy slab is coated with a special titanium alloy glass protective material. Place in a heating furnace (850-880 ° C) for a heating time (6-8 minutes).
• (2) Attach the molding die to a common punching machine and preheat the die (500-650) before punching. The heated billet is then quickly placed in a stamping mold.

Titanium alloy stamping

Titanium Alloy Stamping The metal stamping process for titanium alloy sheets is

• 1. Titanium alloy blank heating temperature (850-880) ℃, heating time (6-8) min.
• 2. Mold preheating temperature (500-650) ℃.
• 3. The special glass protectant for surface coated titanium alloy is FR5.

Technical field

The present invention relates to a manufacturing method of a titanium alloy sheet metal punching method, and is particularly suitable for punching and deep drawing of a thin-walled TC4 titanium alloy plate having a thickness of about 1 mm.

Background technology
Titanium alloy sheet molding has always been a research theme for new materials and new processes at home and abroad. Titanium alloys are easily broken when deformed, which is not possible in the cold and can only be formed in the hot state. However, thermoforming poses higher requirements and problems for equipment, mold materials and structures, and manufacturing processes.

Titanium alloy thermoforming

Titanium alloys developed rapidly at the end of the 20th century.

Titanium alloys are mainly used in aerospace applications. In the United States and Europe, titanium alloys are widely used in aircraft such as the F-22, Gust, and European 2000. Among them, the superplastic forming / diffusion joining technology of titanium alloy is used not only for manufacturing flaps and hatches, but also for tip slats, duck wings and reduction gears. Pelvic fins, flaps and engine rectifying blades of advanced Chinese aircraft, as well as advanced missile missile components, use a thin-walled structure of titanium alloy.

Although superplastic molding, thermoforming and chemical grinding techniques for Chinese titanium alloys have made significant progress, most titanium alloy parts are still predominantly machined, but few are punched out. In addition, a high temperature creep forming process is required and a special high temperature creep forming machine is required, which is expensive and expensive.

Outline of invention

The technical problem to be solved by the present invention is to provide a titanium alloy plate stamping molding process, which solves the problem of overheat creep of the TC4 titanium alloy plate.

Means for Solving the Problems In order to solve the above problems, the present invention

Drawing

Figure 1 Schematic diagram of titanium alloy sheet molded arm products.
Figure 2. Titanium alloy sheet forming the mold diagram.
In FIG. 2, 1 is an upper mold, 2 is a positioning pin, 3 is a titanium alloy blank, and 4 is a lower mold.
The mold is mounted on a universal punch and the heated titanium alloy blank is placed in the lower mold cavity. The punch is activated to press the upper and lower mold blanks to form the part.