Professor Bo is based at the School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China. Specialties and research interests: Additive manufacturing, Powder metallurgy, Design of materials and structure, Advanced functional parts and coatingsZhao Aiguo is based at the College of Civil Engineering, Nanjing Tech University, Nanjing, Jiangsu, China. Specialties and research interests: Acoustic metamaterials, Fatigue and fracture of materials, Additive manufacturingDr Lei is based at the School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China. Specialties and research interests: Topological structure design, Metamaterials optimization, Selective laser melting, 3D Printing Technology, application Technology of 3D Printing in Aerospace, Mould and BiomedicineSpecialties and research interests: Topological optimization, 3D Printing Technology, Application technology of 3D Printing in Aerospace.Specialties and research interests: Structure design, Metamaterials optimization, Selective laser melting, 3D Printing Technology, application Technology of 3D Printing in Aerospace, and Biomedicine.School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China. Specialties and research interests: Additive manufacturing, Near-net forming manufacturing, Water-saving product development, Optical, mechanical and electronic integration