What Is The Initial Processing Process Of Titanium Plate?

When the titanium plate is heated, it can interact with oxygen to form an oxide film on the surface. At different heating temperatures, the structures and properties of oxide films are different. In order to ensure the quality of the material, the manufacturer has the certificate and test report.

1. Requirements for the supply of raw materials for the preparation of titanium plates

One-time deformation of titanium plate - rolled into a plate in a metallurgical plant, the repeatability of the performance is poor. The mechanical properties of titanium plates of the same composition produced at home and abroad are not small; the properties of plates produced by different domestic factories are not the same, even if the products of a factory have different mechanical properties for different heats. Therefore, in order to ensure the quality of parts, the quality of raw materials should be ensured first. Titanium and titanium alloy sheets received from the warehouse shall be provided with the factory's ex-factory certificate and the factory's re-inspection certificate. In order to facilitate verification in the future, the certificate of conformity should be kept. When necessary, the workshop can record the basic conditions of the parts manufactured from each sheet for future reference. All sheets are required to be supplied in the annealed condition. In order to ensure the quality of the parts, the oxide layer and other contamination on the surface of the sheet should be removed. The surface of the titanium plate shall not have defects such as cracks, peeling, folds, inclusions, and traces of pickling. Sheets should be straight and packed with paper out of the warehouse. During the subsequent blanking, forming, assembling, transportation, and storage processes, care should be taken to prevent surface scratches.

2. Titanium plate blank blanking

There are many similarities in the preparation methods of wool used for various sheet metal parts. Since the thickness of the titanium plate used is generally less than 2 mm, and there are few parts with a thickness of more than 1.5 mm, the blanking of the titanium plate can be carried out at room temperature using the existing equipment.

When cutting, pay attention to making the edge of the wool as smooth as possible, especially to prevent defects such as cracks, gnawing, and shear marks on the edge and more attention should be paid when shearing thick plates. Wool should be deburred and sharp edges removed before forming. Since the titanium plate is highly sensitive to crack propagation, this work is extremely important to eliminate stress concentrations and prevent the wool from cracking and scratching the mold during forming. Deburring or polishing can be done by filing, belt sanding, or sandpaper.

It should be noted that no matter which method is used to cut the material when scribing, only ink and pens that do not produce pollution can be used. Steel printing is not allowed on the wool material, only offset printing or specially equipped labels.

3. Degreasing and cleaning before forming

Before any thermoforming, the surface should be cleaned of grease or other contamination to avoid contamination of the titanium when heated. In addition, oxides on the surface of the wool reduce the plasticity of the material and should be removed before forming. Therefore, in order to reduce various influences on the atmosphere, vacuum quenching furnaces and vacuum annealing furnaces are generally used for heating.