Weigl performed some experimental disassembly of video camera recorders, focusing on the removal of fasteners and jammed components. Schmult created a complete system for disassembly of block structures, which simplifies the domain of possible motions to disconnect parts but did not incorporate tool path generation. In this work, it is assumed that traditional precedence relationships apply when disassembling the product. Recently, Mascle and Balasoiu presented a wave propagation method to generate disassembly sequences. discuss the general disassembly problem in detail. Existing surveys of disassembly sequencing and planning research by Lambert, Lee et al. A number of researchers have focused on the disassembly problem.
REMOVE TIMETOOL MANUAL
Manual disassembly methods are commonly used due to the high degree of variability encountered in a used product stream. Shredding cannot be applied when a product contains hazardous materials or when product subassemblies or components have value. The two major methods of current dismantling practice are product shredders and manual disassembly. Schmult states that the disassembly of the product is essential for acquiring desirable or undesirable material and segregating dissimilar materials. Furthermore, recycling technology is identified as a key challenge for the industry. Two major challenges for recyclers identified by the IAER are cost of operations and capacity. The International Association of Electronics Recyclers (IAER) estimates that 400 million units of consumer electronics will be scrapped annually by the year 2010. The need for new demanufacturing technologies results from a growing population of end of life product and in particular electronics. The case study shows that a new flexible robotic demanufacturing process has been achieved that requires no predetermined information on the product surface geometry. A case study of the demanufacture of mobile phones is presented to illustrate the flexible robotic demanufacturing operation. Tool path generation occurs in three stages: machining operation sequencing, active tool path generation and active product avoidance. The model uses manifolds to reduce the tool path generation function to navigation of the surface manifold. Unique contributions of this flexible demanufacturing method include a new system model that utilizes a product surface model and a robot tool position model to actively generate real time tool paths. To address this very high scale flexibility, a unique prototype flexible demanufacturing work cell has been established. Furthermore, the new demanufacturing method employs cutting operations but differs from traditional machining operations due to the degree of flexibility required. The demanufacturing method presented in this work is unique from disassembly because destructive methods are employed thus, eliminating the need to account for precedence relationships. The need for new demanufacturing technologies exists due to a growing population of end of life electronic products.