Layered Manufacturing With Embedded Components: Process Planning Considerations

1999 ◽  
Author(s):  
Jorge G. Cham ◽  
Beth L. Pruitt ◽  
Mark R. Cutkosky ◽  
Mike Binnard ◽  
Lee E. Weiss ◽  
...  
Keyword(s):  
Process Planning ◽  
Layered Manufacturing ◽  
Manufacturing Processes ◽  
Smart Products ◽  
Design And Manufacturing ◽  
Manufacturing Methods ◽  
The Creation ◽  
Shape Deposition Manufacturing ◽  
Planning Algorithms ◽  
Mechanical Components

Abstract This paper addresses the design and manufacturing of products with embedded components through layered manufacturing processes such as Shape Deposition Manufacturing (SDM). Embedding components allows the creation of novel designs such as “smart” products and integrated assemblies of sensors, actuators and other mechanical components. We present prototypes to illustrate the possibilities for such devices and we address the issues that constrain their process planning. Next, we present a combination of process planning algorithms and manufacturing methods that we have developed to support the design of layered products with embedded components.

scholarly journals 3D Digitization and Additive Manufacturing Technologies in Medicine

2018 ◽  
Vol 26 (42) ◽  
pp. 165-170
Author(s):  
Ivan Molnár ◽  
Ladislav Morovič
Keyword(s):  
Additive Manufacturing ◽  
Manufacturing Processes ◽  
Design And Manufacturing ◽  
Medical Aids ◽  
Manufacturing Methods ◽  
Manufacturing Technologies ◽  
Design And Manufacture ◽  
3D Digitization ◽  
The Given

Abstract The paper discusses the use of 3D digitization and additive manufacturing technologies in the field of medicine. In addition, applications of the use of 3D digitization and additive manufacturing methods are described, focusing on the design and manufacture of individual medical aids. Subsequently, the process of designing and manufacturing of orthopedic aids using these technologies is described and the advantages of introducing the given technologies into the design and manufacturing processes in the medicine sector are presented.

Product Investigation for First-Year Mechanical Engineering Students

1998 ◽  
Vol 26 (3) ◽  
pp. 234-240
Author(s):  
J. N. Fawcett ◽  
J. F. L. Chan
Keyword(s):  
Mechanical Engineering ◽  
Interpersonal Skills ◽  
Engineering Students ◽  
First Year ◽  
Manufacturing Processes ◽  
First Year Students ◽  
Design And Manufacturing ◽  
Manufacturing Methods ◽  
Structured Approach

A structured approach to providing real engineering interest for first-year students of Mechanical Engineering is described. This approach, which has been used successfully for a number of years, introduces students to the design and manufacturing processes through investigation of a locally manufactured product. It includes analysis of possible manufacturing methods and a visit to the plant to observe and discuss the manufacturing methods used. Interpersonal skills are developed through working in small teams and making oral and written presentations.

Fast and Robust: Hexapedal Robots via Shape Deposition Manufacturing

2002 ◽  
Vol 21 (10-11) ◽  
pp. 869-882 ◽  
Author(s):  
Jorge G. Cham ◽  
Sean A. Bailey ◽  
Jonathan E. Clark ◽  
Robert J. Full ◽  
Mark R. Cutkosky
Keyword(s):  
Layered Manufacturing ◽  
Manufacturing Technology ◽  
Biomimetic Design ◽  
Unstructured Environments ◽  
Biomimetic Robots ◽  
Biological Structures ◽  
Manufacturing Methods ◽  
Shape Deposition Manufacturing ◽  
And Performance ◽  
Design Inspiration

Robots to date lack the robustness and performance of even the simplest animals when operating in unstructured environments. This observation has prompted an interest in biomimetic robots that take design inspiration from biology. However, even biomimetic designs are compromised by the complexity and fragility that result from using traditional engineering materials and manufacturing methods. We argue that biomimetic design must be combined with structures that mimic the way biological structures are composed, with embedded actuators and sensors and spatially-varied materials. This proposition is made possible by a layered-manufacturing technology called shape deposition manufacturing (SDM). We present a family of hexapedal robots whose functional biomimetic design is made possible by SDM's unique capabilities and whose fast (over four body-lengths per second) and robust (traversal over hip-height obstacles) performance begins to compare to that seen in nature. We describe the design and fabrication of the robots and we present the results of experiments that focus on their performance and locomotion dynamics.

An Interactive Aid for Designing and Planning Heterogeneous Layered Prototypes

2001 ◽  
Author(s):  
Jonathan Clark ◽  
Liba Xia ◽  
Mark R. Cutkosky
Keyword(s):  
Process Planning ◽  
Manufacturing Process ◽  
Layered Manufacturing ◽  
Planning Tool ◽  
Cad Systems ◽  
Manufacturing Planning ◽  
Planning Decisions ◽  
Collaborative Environment ◽  
The Creation ◽  
Programming Interfaces

Abstract We describe a Java process editor to assist designers with the creation of complex, multi-material prototypes via a layered manufacturing process. Designers should generally participate in the manufacturing planning of such parts because many planning decisions are based on functional considerations. For maximum flexibility, the process planning tool should work in a collaborative environment with multiple CAD systems. These considerations have lead us to develop an interactive editor that is built atop a Java agent infrastructure and communicates with commercial CAD systems via their applications programming interfaces.

Using Compliant Mechanisms to Improve Manufacturability in MEMS

2002 ◽  
Author(s):  
Deanne Clements Kemeny ◽  
Larry L. Howell ◽  
Spencer P. Magleby
Keyword(s):  
Compliant Mechanisms ◽  
Compliant Mechanism ◽  
Layered Manufacturing ◽  
Manufacturing Processes ◽  
Micro Electro Mechanical Systems ◽  
Critical Areas ◽  
Manufacturing Methods ◽  
Electrical Components ◽  
Design Challenges ◽  
Related Design

Micro-electro-mechanical systems (MEMS) consist of micro mechanisms integrated with electrical components. MEMS are often fabricated using a layered manufacturing approach with polysilicon. Because of certain challenges and constraints inherent in the manufacturing methods for MEMS, compliant mechanism technology is beneficial in designing these micro devices. This paper examines the interaction of compliant mechanisms (CMs) and MEMS in three areas: (1) the characteristics of CMs that make them attractive to use in MEMS, (2) the challenges presented to the use of CMs due to the manufacturing processes inherent in MEMS, and (3) performance-related design challenges with CMs and MEMS. These are critical areas of design when considering manufacturability in MEMS.

Layered Manufacturing: Current Status and Future Trends

2000 ◽  
Vol 1 (1) ◽  
pp. 60-71 ◽  
Author(s):  
Debasish Dutta ◽  
Fritz B. Prinz ◽  
David Rosen ◽  
Lee Weiss
Keyword(s):  
Process Planning ◽  
Layered Manufacturing ◽  
Current Status ◽  
Manufacturing Processes ◽  
Future Trends ◽  
Planning Techniques ◽  
Current Technology ◽  
Heterogeneous Objects ◽  
The Future ◽  
Design Systems

This paper reviews the emerging field of layered manufacturing. This field is little over 10 years old but a significant amount of research has been conducted and results to date are quite promising. We consider three broad topics namely, design systems for heterogeneous objects, layered manufacturing processes, and process planning techniques. Several applications/examples are included in the course of the survey and limitations of current technology identified. We conclude with some possibilities for the future.

An Innovative Synthetic Mooring Solution for an Octagonal FPSO in Shallow Waters

2010 ◽  
Author(s):  
Mo Fan ◽  
Da Li ◽  
Tuanjie Liu ◽  
Alex Ran ◽  
Wei Ye
Keyword(s):  
Oil And Gas ◽  
Shallow Waters ◽  
Manufacturing Processes ◽  
Mooring System ◽  
Oil And Gas Development ◽  
Mooring Lines ◽  
Environmental Loads ◽  
Design And Manufacturing ◽  
Full Production ◽  
Three Bundles

An octagonal FPSO has been proposed for marginal oil and gas development in shallow waters. A shuttle tanker will be deployed near the FPSO during offloading operations. This new concept simplifies the design and manufacturing processes, yet maintains full production, storage, and offloading functions of a conventional ship-shaped FPSO. However, design of the mooring system for this floating unit imposes technical challenges due to: 1) high environmental loads expected on this unit, 2) large dynamic offsets of the unit in shallow waters, and 3) inadequate performance of catenary mooring systems in shallow waters. Thus, development of a viable station keeping solution becomes a key issue to the new concept FPSO design. In this paper, an innovative mooring system is designed to meet the challenges. The FPSO mooring system consists of pile anchors, bridle chains, anchorage buoys, and polyester ropes. Nine mooring lines are grouped into three bundles which evenly spread around the FPSO. The shuttle tanker is attached to the FPSO with a nylon rope hawser at the bow and secured to pre-installed anchorage buoys at the stern with two other nylon ropes. Analyses have been performed for the FPSO mooring system. It is concluded that the proposed mooring system is fully functional and effective.

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