
1、 Basic Forming Process of Titanium Plate
1. Cutting and Rolling
Use a professional cutting machine or tool to cut the titanium plate to the target size, with an error controlled within ± 0.5mm;
Cold rolling or hot rolling through a mechanical rolling mill:
Hot rolling: After the slab is heated by a step heating furnace, it is gradually thinned to the target thickness by a roughing mill and a finishing mill, and the surface needs to be descaling with high-pressure water to remove the oxide scale;
Cold rolling: Based on hot-rolled sheet metal for multiple passes of rolling, it has higher dimensional accuracy and is suitable for high-precision component manufacturing.
2. Squeezing and Stamping
High pressure extruder combined with mold to form complex cross-sectional structures;
Stamping machines achieve rapid prototyping and can process precision holes or concave convex structures with a diameter of ≥ 1mm, suitable for aerospace components.
2、 Surface treatment technology
1. Acid washing and shot blasting
After annealing, the titanium plate is cleaned with hydrochloric acid and mixed acid to remove oxide scale and improve surface glossiness;
Steel shot blasting treatment enhances surface roughness and improves coating adhesion.
2. Functional coating
Sandblasting treatment: The impact of alumina particles forms a uniform texture, improving wear resistance;
Vacuum evaporation: Deposition of nanoscale metal films on the surface of titanium plates, endowing them with antibacterial or conductive functions.
3、 Heat treatment and post-treatment
1. Annealing process:
Pure titanium sheet is insulated at 650-750 ℃ for 1-2 hours to eliminate cold rolling stress and restore plasticity;
TC4 titanium alloy requires double annealing to optimize strength toughness matching.
2. Straightening process:
Use a multi roll straightening machine to correct defects such as edge waves and warping on titanium plates, with a flatness of ≤ 1mm/m.
4、 Application of Advanced Manufacturing Technology
1. Additive manufacturing: Laser selective melting technology achieves integrated molding of complex structures of titanium plates, with a material utilization rate of over 85%. Typical applications include aviation engine fuel nozzles;
2. Composite processing: A CNC production line integrating laser cutting and bending, with processing efficiency four times higher than traditional processes.
Attention:
1. Material selection: TA1 pure titanium is suitable for conventional corrosion-resistant scenarios, TC4 is used for high-strength structural components;
2. Tool wear: High cobalt content hard alloy tools should be used during processing, and emulsified cooling should be used to extend their lifespan;
3. Environmental requirements: Acid washing waste liquid must be neutralized and treated to meet standards before being discharged, with a fluoride ion concentration of ≤ 10mg/L.
Summary: Titanium plate processing needs to match the process chain according to specific performance requirements. The collaborative application of traditional cold and hot rolling and additive manufacturing technologies is driving its penetration rate in high-precision and cutting-edge fields to increase by more than 60%.