Lego-like reconfigurable machining system: New perspecives to optimize production capacity

2017 ◽  
Author(s):  
Doriana M. D'Addona ◽  
Alessandro A. G. Bruzzone Dime
Keyword(s):  
Production Capacity ◽  
Reconfigurable Machining ◽  
Machining System

A descriptive multi‐attribute model for reconfigurable machining system selection examining buyer‐supplier relationships

2000 ◽  
Vol 2 (1) ◽  
pp. 33-48 ◽  
Author(s):  
Stephen E. Chick ◽  
Tava Lennon Olsen ◽  
Kannan Sethuraman ◽  
Kathryn E. Stecke ◽  
Chelsea C. White
Keyword(s):  
Supplier Relationships ◽  
Reconfigurable Machining ◽  
Machining System ◽  
Attribute Model ◽  
System Selection

Hole Pattern Identification in Gang Spindle Head Design for Reconfigurable Machining Systems

2000 ◽  
Author(s):  
Catherine Ling ◽  
Derek Yip-Hoi ◽  
Yoram Koren
Keyword(s):  
Pattern Identification ◽  
Machine Design ◽  
Identification Algorithm ◽  
Part Family ◽  
Reconfigurable Machining ◽  
Systematic Methodology ◽  
Machining System ◽  
The Cost ◽  
Alternative Solutions ◽  
Different Parts

Abstract A systematic methodology for automatic gang spindle head design through parallelism-based operation clustering is an important component in Reconfigurable Machining System (RmS)1 design. Such parallelism-based operation clusters as we refer to them, must satisfy a set of constraints in order to be processed simultaneously on a gang spindle head. A group of operations should be decomposed if any constraint is violated. In doing this, the identification of clusters with identical patterns can potentially lead to savings in machine design and reconfiguration costs. To identify these patterns manually is time consuming and prone to error. This paper presents a pattern identification algorithm that will recognize identical pattern clusters by first searching for translational vectors (or rotational vectors) and then extracting the appropriate sets of end-points. The algorithm automatically obtains all alternative solutions so that finding identical patterns on different faces of the part or on different parts within a part family can be implemented. This strategy maximizes the usage of identical spindles and/or machines. The cost associated with redesigning, testing, and reconfiguration is significantly reduced. Such a tool can be used by the system designer for gang spindle head design in the RmS domain.

A New Methodology for Sensor Selection in Process Monitoring of Reconfigurable Machining Systems (RmSs)

Manufacturing ◽  
2002 ◽  
Author(s):  
Mostafa G. Mehrabi ◽  
Elijah Kannatey-Asibu
Keyword(s):  
Monitoring System ◽  
Fuzzy Systems ◽  
New Approach ◽  
Fundamental Properties ◽  
Reconfigurable Machining ◽  
Machining System ◽  
To Come ◽  
Machining Operations ◽  
Sensor Monitoring ◽  
Mapping Theory

This article outlines a new approach for selecting an appropriate monitoring system for any given machining system. Presented are the concepts of fault, sensor, signal processing and computing spaces and their generic characteristics. Study of their fundamental properties reveals that there are certain levels of uncertainty involved in describing them. This has led us to the adoption of fuzzy systems theory as a fundamental tool for development of the “Mapping Theory”. It is shown that based on the characteristics of the faults and the type of machining operations, it is possible to rank the sensors based on their characteristics and to come up with an appropriate multi-sensor monitoring system. Examples are provided to show the effectiveness of the approach.

Module Selection Methodology for Designing Reconfigurable Machining Systems

Manufacturing ◽  
2002 ◽  
Author(s):  
Li Chen ◽  
Fengfeng Xi ◽  
Ashish Macwan
Keyword(s):  
Part Family ◽  
Systematic Feature ◽  
Reconfigurable Machining ◽  
Module Selection ◽  
Machining System ◽  
Feature Based ◽  
Sufficient Set ◽  
Selection Methodology ◽  
Work Done

This paper presents a systematic, feature-based selection methodology to select the minimum yet sufficient set of modules (DP’s) to satisfy a given set of machinable features (FR’s) in order to construct a reconfigurable machining system capable of producing a part family. Two cases of selection are considered: selecting DP’s for single FR’s, and for multiple FR’s. The second case considers two selection scenarios: selecting separate DP’s to individually satisfy the FR’s, and selecting a single DP to simultaneously satisfy all the FR’s. These selection cases and scenarios are necessitated by our previous work done on developing a method for module identification. Each step of the methodology is presented in detail, and then subsequently illustrated by being applied to a case study. The case study deals with the design of the overall layout of a reconfigurable machining system required to machine a given family of die molds.

Production capacity of Russian industry: Potential of import Substitution and economic Growth

2015 ◽  
pp. 5-24 ◽  
Author(s):  
B. Zamaraev ◽  
T. Marshova
Keyword(s):  
Economic Growth ◽  
Import Substitution ◽  
Production Capacity ◽  
Current Level ◽  
High Tech ◽  
Industrial Growth ◽  
Russian Industry ◽  
Technological Modernization ◽  
Capacity Structure ◽  
Idle Capacity

The article examines the state of production capacity of Russian industry. It is shown that in spite of certain positive shifts, the rate of technological modernization in recent years has been insufficient for marked progressive changes in the capacity structure and quality. In contrast to the industrial growth after the crisis of 1998 that took place in the presence of significant reserves of capacity, the current level of idle capacity is much lower. The lack of mass input of modern and high-tech industries objectively limits the possibilities of import substitution and economic growth.

Mineral/microfibrillated cellulose composite materials: High performance products, applications, and product forms

TAPPI Journal ◽  
2018 ◽  
Vol 17 (09) ◽  
pp. 507-515 ◽  
Author(s):  
David Skuse ◽  
Mark Windebank ◽  
Tafadzwa Motsi ◽  
Guillaume Tellier
Keyword(s):  
Composite Materials ◽  
High Performance ◽  
Aqueous Suspension ◽  
Production Capacity ◽  
Cost Savings ◽  
Cost Effective ◽  
New Materials ◽  
Wet Strength ◽  
Product Forms ◽  
Cellulose Composite

When pulp and minerals are co-processed in aqueous suspension, the mineral acts as a grinding aid, facilitating the cost-effective production of fibrils. Furthermore, this processing allows the utilization of robust industrial milling equipment. There are 40000 dry metric tons of mineral/microfbrillated (MFC) cellulose composite production capacity in operation across three continents. These mineral/MFC products have been cleared by the FDA for use as a dry and wet strength agent in coated and uncoated food contact paper and paperboard applications. We have previously reported that use of these mineral/MFC composite materials in fiber-based applications allows generally improved wet and dry mechanical properties with concomitant opportunities for cost savings, property improvements, or grade developments and that the materials can be prepared using a range of fibers and minerals. Here, we: (1) report the development of new products that offer improved performance, (2) compare the performance of these new materials with that of a range of other nanocellulosic material types, (3) illustrate the performance of these new materials in reinforcement (paper and board) and viscosification applications, and (4) discuss product form requirements for different applications.

Multiple recycling of paperboard: Paperboard characteristics and maximum number of recycling cycles— Part I: Multiple recycling of corrugated base paper

TAPPI Journal ◽  
2019 ◽  
Vol 18 (11) ◽  
pp. 631-638
Author(s):  
FREDERIC KREPLIN ◽  
HANS-JOACHIM PUTZ ◽  
SAMUEL SCHABEL
Keyword(s):  
Compression Test ◽  
Production Capacity ◽  
Strength Properties ◽  
Paper Properties ◽  
Corrugated Board ◽  
Laboratory Conditions ◽  
Base Paper ◽  
Study Results ◽  
Short Span ◽  
Multiple Recycling

Paper for recycling is an important fiber source for the production of corrugated base paper. The change in production capacity toward more and more packaging papers affects the composition of paper for recycling and influences the paper quality. This research project investigated the influence of the multiple recycling of five different corrugated base papers (kraftliner, neutral sulfite semichemical [NSSC] fluting, corrugating medium, testliner 2, and testliner 3) on suspension and strength properties under laboratory conditions. The corrugated board base papers were repulped in a low consistency pulper and processed into Rapid-Köthen laboratory sheets. The sheets were then recycled up to 15 times in the same process. In each cycle, the suspension and the paper properties were recorded. In particular, the focus was on corrugated board-specific parameters, such as short-span compression test, ring crush test, corrugating medium test, and burst. The study results indicate how multiple recycling under laboratory conditions affects fiber and paper properties.

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