Papers by Keyword: Design for Manufacturing and Assembly (DFMA)

Abstract: Due to the good potential of Holzewig products, which resemble the function of wood, PT. Pracetak Bangun Indonesia plans to make finished products ready for use by the general public. Because there are several constraints in the production process, such as product design, the product manufacturing process, and the assembly process, planning and design processes are needed. one that can be used to make production process choices, namely the Design for Manufacture and Assembly (DFMA) and Activity-Based Costing (ABC) methods for calculating the cost of production. By using the DFMA method to find proposals for the production process, the process of making a design proposal is not much different from the process of making a set of chairs and a dining table made of wood; it's just that there are some differences due to the different materials used, so that the types of tools and assembly materials are different. The cost of goods sold obtained for making a set of chairs and tables consisting of 2 chairs and 1 table is 987,333.73. Holzewig material can be used in place of wood as an alternative for furniture products because its overall weighing value is just 0,001 less than that of wood.

Abstract: As a new manufacturing method, Additive Manufacturing has begun to get a foothold in the manufacturing industry. The effective exploitation of the technology requires many times a re-design of the product or re-considering the manufacturing technology. Design for additive manufacturing differs considerably from design to other manufacturing methods, therefore design guidelines for additive manufacturing has been developed. The purpose of this paper is to present a new variant of the Design for Manufacturing and Assembly (DFMA) method which supports additive manufacturing.

Abstract: In the olden days the motto was "I designed it; you build it!" Design engineers worked alone and Designs were then thrown over the wall leaving manufacturing people with the dilemma how to manufacture. Often this delayed both the product launch and the time to ramp up to full production. In the new good days manufacturability can be assured by developing products in multi-functional teams with early and active participation from Manufacturing, Marketing (and even customers), Finance, Industrial Designers, Quality, Service, Purchasing, Vendors and factory works. The need for a holistic approach between design and manufacturing is required. The two concepts Design for Manufacturing & Design for Assembly has become the need of the hour. The heart of any design for manufacturing system is a group of design principles or guidelines that are structured to help the designer reduce the cost and difficulty of manufacturing an item.Realisation of Cryogenic thrust chamber includes various manufacturing processes like Forming, Welding, Machining and Brazing. During initial stages of Thrust chamber realisation problems like Forming of 1.7m long nozzle divergent from thin sheets, welding of various intricate geometries & assembly of critical parts were observed. Subsequently these problems were studied based on the holistic approach of Design for manufacturing & design for assembly. Improvements based on the above study were considered in design & critical processes modifications resulting in successful and timely realization of the thrust chamber.

Abstract: In this paper, we present different points of view to make the sheet metal and micro-wave product as manufacturing friendly as possible. Within DFM(A)-research (Design for Manufacturing and Assembly), engineering design and manufacturability of Micro-Wave (MW) and sheet metal products has been studied. Other aspects of DFM(A) have risen from novel material applications and the development of CAD (Computer Aided Design) environments. In this paper, practical examples are presented to show how to apply DFMA-rules to MW- and sheet metal components, in particular, and how to develop DFM(A)-rules for these purposes.