Seamless transition from simulation to experiment in micro-optics assembly process optimization

2021 ◽  
Author(s):  
Andras Cserteg ◽  
Kornel Jahn ◽  
Abel Mihaly Nagy ◽  
Kazuya Nagashima ◽  
Yozo Ishikawa
Keyword(s):  
Process Optimization ◽  
Assembly Process ◽  
Seamless Transition ◽  
Micro Optics

Material Handling and Assembly Process Optimization using Value Stream Mapping

2017 ◽  
Vol 6 (1) ◽  
pp. 59
Author(s):  
Daniel Derrell Forest ◽  
G.H. Massiha
Keyword(s):  
Process Optimization ◽  
Continuous Improvement ◽  
Lean Manufacturing ◽  
Material Handling ◽  
Design Method ◽  
Added Value ◽  
Value Stream Mapping ◽  
Assembly Process ◽  
Workplace Design ◽  
Value Stream

<span>The purpose of this project is to evaluate and optimize an assembly process for ergonomic and productivity considerations. Companies use lean manufacturing as a method for continuous improvement in order to increase throughput and for to reallocate resources for more important tasks. For this project, value stream mapping (VSM) was used to evaluate, analyze, and improve the ergonomic factors of an assembly process and to increasing throughput. With the use of VSM, researchers are able to see the areas of added value, non-added value, and bottlenecks. This project illustrates the implementation of VSM for the minimization of waste, by using the design method to restructure the process of assembly. The results show drastic improvement in assembly time and ergonomic workplace design, while providing a platform for a continuous improvement system.</span>

Research on Complex Precision Mechanical System Assembly Parallel Control System

2012 ◽  
Vol 215-216 ◽  
pp. 1267-1275
Author(s):  
Bao Zhong Wu ◽  
Jing Qiu ◽  
Guo Xi Li ◽  
Jing Zhong Gong
Keyword(s):  
Decision Making ◽  
Control System ◽  
Mechanical System ◽  
Process Optimization ◽  
Dynamic Characteristics ◽  
Main Process ◽  
Assembly Process ◽  
Alignment Process ◽  
Parallel Control

To achieve the assembly process control of aerospace complex precision mechanical systems and ensure its dynamic characteristics, parallel control theory and methodology is used in the assembly process. The main point is: assembly parallel control system is built corresponding to the actual assembly ones. The ultimate quality of assembly is guaranteed via alignment influence analysis on the dynamics characteristics of the assembly joint structural and the assembly machine and the dynamic characteristics-oriented alignment process optimization and decision-making to carry out computing operator and process decision-making in the assembly process. The dissertation ,regarding space sophisticated mechanical system assembly and its dynamic characteristics as study object, introduced the parallel control thought, presented the overall framework of assembly parallel control, built the assembly parallel control system(APCS) and given the main process and implement of assembly parallel control.

A technique for integrated modelling of manual and automatic assembly

2015 ◽  
Vol 26 (2) ◽  
pp. 164-181 ◽  
Author(s):  
Yuval Cohen
Keyword(s):  
Code Generation ◽  
Computer Control ◽  
Modelling Technique ◽  
Integrated Modelling ◽  
Future Research ◽  
Assembly Process ◽  
Automated Assembly ◽  
Content Type ◽  
Seamless Transition ◽  
Automated Processes

Purpose – The purpose of this paper is to describe a comprehensive modelling technique that supports the assembly of very complex products that require intensive use of both computerized worker guidance and automation. The modelling enables the planning of this complex process. Design/methodology/approach – The proposed approach utilizes and extends typical product documentation (such as route cards and bill of materials (BOM)) to form hierarchical Petri net in a stepwise process. The suggested framework models the dynamic progress of the assembly process, and can generate route card instructions for manual operations, or ladder diagrams (LDs) for automation. Findings – The model can help the generation of computerized control over route cards for manual assembly operations. For automated processes, the translation algorithm of the model to LD enables its application on currently available equipment (programmable logic controllers (PLCs)). Research limitations/implications – The proposed framework heavily depends on the BOM data quality. So it is crucial to verify that the BOM data is not ill-defined before applying the proposed framework. Future research could report on the implementation of this model in assembly processes, or suggest another modelling technique. Practical implications – The model enables the integration of computer control over both manual and automated assembly processes. This enables seamless transition between these two very different operations. This ability carries the promise of reducing the cost of code generation and maintenance, and contributes to the progress towards more flexible automation. Originality/value – This paper presents a new comprehensive modelling technique that may support planning, simulating, tracing, and controlling the assembly process. The technique for the first time integrates modelling of both manual and automated assembly operation.

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