TY - JOUR AU - Santos, Silvia Grandi dos AU - de Araujo, Silvio Alexandre AU - Rangel, Socorro PY - 2011/02/21 Y2 - 2024/03/29 TI - INTEGRATED CUTTING MACHINE PROGRAMMING AND LOT SIZING IN FURNITURE INDUSTRY JF - Pesquisa Operacional para o Desenvolvimento JA - P. O. Desenvolvimento VL - 3 IS - 1 SE - Artigos DO - UR - https://podesenvolvimento.org.br/podesenvolvimento/article/view/37 SP - 1-17 AB - <p class="MsoBodyText" style="line-height: normal; margin: 0cm 0cm 6pt;"> </p><p class="MsoBodyText" style="line-height: normal; margin: 0cm 0cm 6pt;"> </p><p class="MsoNormal" style="text-align: center; line-height: normal; margin: 0cm 34pt 0pt;" align="center"><strong style="mso-bidi-font-weight: normal;"><span style="font-family: " lang="EN-US">Abstract</span></strong></p><span style="font-family: " lang="EN-US"><p class="MsoNormal" style="line-height: normal; margin: 0cm 34pt 3pt;"><span style="font-family: " lang="EN-US">In this paper a mathematical model that combines lot-sizing and cutting-stock problems applied to the furniture industry is presented. The model considers the usual decisions of the lot sizing problems, as well as operational decisions related to the cutting machine programming. Two sets of <em>a priori</em> generated cutting patterns are used, industry cutting patterns and a class of <em>n</em>-group cutting patterns. A strategy to improve the utilization of the cutting machine is also tested. An optimization package was used to solve the model and the computational results, using real data from a furniture factory, show that a small subset of <em>n</em>-group cutting patterns provides good results and that the cutting machine utilization can be improved by the proposed strategy.</span><span style="font-family: " lang="EN-US"> </span></p><p class="MsoNormal" style="line-height: normal; margin: 0cm 34pt 3pt;"> </p><p class="Abstract" style="line-height: normal; margin: 0cm 34pt 0pt;"><span style="font-family: " lang="EN-US"> </span></p></span><strong style="mso-bidi-font-weight: normal;"><span style="font-family: " lang="EN-US">Keywords</span></strong><span style="font-family: " lang="EN-US">: </span><span style="font-family: " lang="EN-US">Lot</span><span style="font-family: " lang="EN-US"> Sizing Problem, Cutting Stock Problem, Integrated Problem, Furniture Industry.</span> ER -