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CNC machining process planning productivity – a qualitative survey
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avd för industriell produktion. (PTW)
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avd för industriell produktion. (PTW)
Production Technology Centre, Innovatum AB.
2009 (Engelska)Ingår i: Proceedings of The International 3'rd Swedish Production Symposium, SPS 09, 2009, s. 228-235Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Process planning is the link between design and manufacturing and consequently an important function, since it influences many of the company objectives. However, many companies have little knowledge about their process planning function and the efficiency is thus not optimal. The paper focuses on the automation level of process planning as a mean to improve process planning efficiency. Six CNC machining companies was interviewed and accordingly analysed through a five dimensional automation level model to understand their process planning work. The main findings are that the automation level is low and concurrent engineering is lacking in many of the investigated companies.

Ort, förlag, år, upplaga, sidor
2009. s. 228-235
Nyckelord [en]
Process Planning, Efficiency, CAPP, PLM, CAM
Nationell ämneskategori
Produktionsteknik, arbetsvetenskap och ergonomi
Forskningsämne
TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-2144ISBN: 978-91-633-6006-0 (tryckt)OAI: oai:DiVA.org:hv-2144DiVA, id: diva2:287558
Projekt
NFFP4Tillgänglig från: 2011-10-24 Skapad: 2010-01-19 Senast uppdaterad: 2016-02-09Bibliografiskt granskad
Ingår i avhandling
1. A study of process planning for metal cutting
Öppna denna publikation i ny flik eller fönster >>A study of process planning for metal cutting
2009 (Engelska)Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
Alternativ titel[sv]
En studie av produktionsberedning för skärande bearbetning
Abstract [en]

Process planning as a function for competitiveness is often neglected. However, as an intermediary between product development and manufacturing, it holds a key function in transforming product specifications and requirements into a producible process plan. Demands and requirements should be met concurrently as manufacturing costs and lead times are minimised. The focus of this thesis is the act of process planning, where the use of better methodologies, computer-aids and performance measurements are essential parts. Since process planning has the function of transforming demands and requirements, changing customer and regulative requirements are vital to regard. Since environmentally benign products and production increases in importance, the research presented in this thesis includes a CNC machining cost model, which relates machining costs to energy consumption.  The presented results in this thesis are based on quantitative and qualitative studies in the metal working industry.

 

This thesis has contributed to an enhanced understanding of process planning to achieve better performance and important areas for improvements. Despite a 50 year history of computerised process planning aids, few of these are used in the industry, where manual process planning activities are more common. Process planning aids should be developed around the process planner so that non-value adding activities, such as information management and documentation are minimised in order to allow more resources for value adding activities, such as decision making. This thesis presents a study of systematic process planning in relation to perceived efficiency. This correlation could however not be verified, which opens up for further studies of other possible explanations for process planning efficiency. Process planning improvements in the industry are difficult to make, since there is little focus on process planning activities and limited knowledge about actual performance hereof. This means that measures taken regarding process planning development are difficult to verify.

Ort, förlag, år, upplaga, sidor
Göteborg: Chalmers Reproservice, 2009. s. 52
Serie
Technical report (Department of Materials and Manufacturing Technology, Chalmers University of Technology), ISSN 1652-8891 ; 59
Nyckelord
Process planning, CAPP, CAM, efficiency, performance, green manufacturing, sustainable machining, CNC, Produktionsberedning, effektivitet, grön tillverkning
Nationell ämneskategori
Produktionsteknik, arbetsvetenskap och ergonomi Produktionsteknik, arbetsvetenskap och ergonomi
Forskningsämne
TEKNIK, Produktions- och materialteknik
Identifikatorer
urn:nbn:se:hv:diva-2147 (URN)
Presentation
2009-12-17, Gamma/delta, Hörsalsvägen 7, Chalmers, Göteborg, 10:00 (Engelska)
Opponent
Handledare
Projekt
NFFP4
Tillgänglig från: 2010-03-30 Skapad: 2010-01-19 Senast uppdaterad: 2010-03-30Bibliografiskt granskad

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