Production preparation and numerical control in PCB assembly

New Formulation and Solution in PCB Assembly Systems with Parallel Batch processors

This paper considers the scheduling problem of parallel batch processing machines with non-identical job size and processing time. In this paper, a new mathematical model with ready time and batch size constraints is presented to formulate the problem mathematically, in which simultaneous reduction of the makespan and earliness-tardiness is the objective function. In recent years, the nature-in...

Control Engineering Laboratory Production Optimization on Pcb Assembly Lines Using Discrete-event Simulation

This report describes how discrete-event simulation can be used in production optimisation of electronics assembly lines. Currently, many decisions concerning production are based on workers experience. However, understanding of the parameters influencing production is a challenging task, especially for lines with a wide variety of products. Operation could be improved by analysing bottlenecks ...

Observations on PCB Assembly Optimization

At the top of operational and tactical levels is the scheduling problem. It is here where decisions are made on how to operate machinery to produce a set of different PCBs (usually how to execute the weekly production plan). The next hierarchy level includes grouping and line balancing problems. For the linebalancing problem, the challenge is balancing the workload of different machines when pr...

Assembly and Printed Circuit Board (pcb) Package

Setup Optimization in High-Mix Surface Mount PCB Assembly Setup Optimization in High-Mix Surface Mount PCB Assembly

The thesis discusses machine setup problems which arise in high-mix, lowvolume production environments of printed circuit board assembly (PCB) industry. We concentrate especially on the hybrid setup problem that is a combination of the job grouping and minimum setup problems. We define an objective function that minimizes a weighted sum of the number of setup occasions and the number of feeder ...