“...•Production planning problem in additive manufacturing and 3D printing is introduced.•The mathematical model of the problem is developed and coded in...”

“...A new hybrid assembly line design, called parallel U-shaped assembly line system, is introduced and characterised along with numerical examples for the first...”

“...Growing interests from customers in customised products and increasing competitions among peers necessitate companies to configure their manufacturing systems...”

“...Additive manufacturing (AM), also known as 3D printing, has been called a disruptive technology as it enables the direct production of physical objects from...”

“...As one of the advanced additive manufacturing (AM) processes, the selective laser melting (SLM) process provides the possibility of manufacturing almost any...”

“...Different from a large number of existing studies in the literature, this paper addresses two important issues in managing production lines, the problems of...”

“...Purpose Surface roughness is an important evaluation index for industrial components, and it strongly depends on the processing parameters for selective laser...”

“...Exact methods have shown advanced and promising performance in solving the simple assembly line balancing problem, known as NP-hard. This research investigates...”

“...Typically, the total number of required workstations are minimised for a given cycle time (this problem is referred to as type-1), or cycle time is minimised...”

“...Continuous and unexpected changes in demands of customised products force companies to produce various types of products, concurrently. One of the intelligent...”