sexta-feira, agosto 04, 2017

Outro festival de blasfémias

Continuado daqui.

Agarre-se às cadeiras, segue-se mais um festival de blasfémias:
"The alternate to costly multipurpose or special-order machines is inexpensive, slower, and fewer-purpose machines, but many of them. Every work cell that needs one gets one and can then function autonomously. Although a multipurpose machine offers high flexibility through quick changeover and rapid production rate, all else equal, conventional fewer-purpose machines might provide even greater flexibility when employed in a number of manufacturing cells. Conventional machines are also simpler to operate and less costly to maintain.”[Moi ici: Pode estar aqui uma oportunidade para os fabricantes portugueses de máquinas?]
Constraining that three-pronged potential, however, is the tendency of manufacturers to retain SP practices in spite of their limited responsiveness. Such dysfunctional decision making ... tends to be chosen for local efficiency rather than effectiveness - remains in force today.
Several authors emphasize the importance of avoiding monument equipment consider the potentially negative impact on responsiveness of smoothing the production schedule as commonly
concurrent production relies on multiple, relatively slow-paced, simple, small-footprint, low-cost productive units, sometimes referred to as right-sized
As the number of production units increases, so does the degree to which production becomes concurrent with demand; and as the degree to which equipment units are dedicated increases, so does concurrency.
“Abolish the Setup,” points to the liabilities of “a single, expensive machine that can produce many kinds of parts,” compared with several less-expensive, dedicated machines.
Small, inexpensive units of capacity can be readily reconfigured, which grows in importance as customer preferences proliferate.

CP builds factory infrastructures around multiple product-family or customer-family-focused units - cells, machines, production lines, plants-in-a-plant - with simple, compact, low- cost, “right-sized” equipment and avoidance of monument-sized equipment. The primary objectives of CP are to reduce customer lead times and distribution inventories. Longer-range benefits to the organization as a whole include better customer retention, market penetration, and sales growth. In an era when customers increasingly demand higher variety from manufacturers, CP is timely, making it possible to reap the benefits of responsiveness while keeping production costs low enough for competitiveness."
Trechos retirados de "Missing link in competitive manufacturing research and practice: Customer-responsive concurrent production" publicado por Journal of Operations Management 49-51 (2017) 83-87

Sem comentários: