OPTIMAL GROUP SCHEDULE AND MACHINING SPEEDS OF MULTIPRODUCT, MULTISTAGE MACHINING SYSTEM FOR GROUP TECHNOLOGY

Flexible Fixtures for CNC Machining Centers in Multiproduct Manufacturing

In modern manufacturing engineering, a major challenge is the contradiction between the need to reduce the time required to design and manufacture the products and the increasing complexity of product design. Today's market requires more varieties of products, and consequently the equipment and processes should be more flexible. Fixtures play an essential role in production of high-quality and ...

A Multistage Group Education for Hepatitis B

Abstract Introduction. Hepatitis B is the most common cause of end stage liver disease in Iran. As a high-cost disease with a relatively high incidence, and the relative lack of community knowledge, it warrants initiation of a public health intervention in Iran. Methods. This was a Before-After educational intervention that analyzed the data obtained from questionnaires filled out by 80 pat...

Machining Technology Developments

Intelligent Knowledge Based System Approach for Optimization of Design and Manufacturing for Abrasive Water Jet Machining

A water jet machining is an industrial tool capable of cutting a wide variety of materials using a very high-pressure jet of water, or a mixture of water and an abrasive substance. This paper addresses the concept of the Intelligent knowledge base system (IKBS) for optimization of product design and manufacturing process for water jet machining in computer based concurrent engineering environme...

Optimal grids for five-axis machining

This paper presents a new grid generation method for tool path planning for five-axis machining based on minimization of the kinematics error. First, the procedure constructs a space-filling curve so that the scallops between the resulting tracks of the tool do not exceed a prescribed tolerance. At the second stage (which is the subject of this paper) a one-dimensional grid along the space-fill...