Column - About the Process of Digital Metal (with PDF materials)
ヘガネスジャパン
I will explain the process of Digital Metal using the binder jetting method. 1. Preparation for Forming Decide how to arrange and position the 3D CAD data for forming. The shape data is sliced in the vertical direction at a pitch of 42 micrometers. 2. Forming Metal powder is spread evenly at a pitch of 42 micrometers, and the binder (adhesive) is printed based on the shape data. The forming takes place inside a metal box called a forming box. 3. Curing Once printing is complete, the forming box is removed and heated to solidify (cure) the binder. 4. Cleaning By using air blow, the formed product (green body) solidified with the binder can be removed. Almost 100% of the metal powder that was not solidified with the binder can be reused. 5. Debinding The green body is placed on a sintering tray and heated to vaporize and remove the binder. 6. Sintering After debinding, the formed object is heated in a high-temperature vacuum sintering furnace, causing the metal powder to diffuse and bond, resulting in the physical properties of the metal. 7. Post-processing If necessary, blasting or polishing treatments are applied to finish the parts. - Summary The Digital Metal process consists of two steps: forming and heat treatment. The total time required for the series of processes is approximately 2 days.
