STEP-NC (ISO 14649) was developed and published by International Standard of Organization on June 2006. It was a replacement for G-Code (ISO 6893) and an enhancement to STEP (ISO 10303). At this moment several CAPP and CAM systems related to STEP-NC compliance try to implement and no commercialized system has been established around the world. This critical review identifies the development of ...

Purpose of this paper is to offer the reader an overview of recently performed and ongoing research related to process planning for sheet metal bending, thus providing a starting point for further exploration of this field. The scope of this review paper is limited to sheet metal bending as performed on numerically controlled press brakes, with special focus on air bending. Automatic process pl...

introduction breast cancer is the second cause of mortality among women. early detection of it can enhance the chance of survival. screening systems such as mammography cannot perfectly differentiate between patients and healthy individuals. computer-aided diagnosis can help physicians make a more accurate diagnosis. materials and methods regarding the importance of separating normal and abnorm...

At the initial stage of ship design, it is difficult for designers to define all design information of a hull structure on 2D drawings. Thus, other designers must undertake the arduous task of translating such information to generate a 3D CAD model of the hull structure which is required at the following design stage such as the initial process planning stage. Since this task needs much time an...

Computer-aided process engineering and conceptual design in energy chemical has played a critical role for decades. Conventional computer-aided system generally starts with flowsheets that...

The Computer Aided Design (CAD) has been a very important tool for the design and manufacturing in recent years. However, the CAD has often been used as ‘Computer Aided Drafting’ for engineering parts in industry. The ‘design’ part of the CAD is often not very well implemented and by improving on it we can enhance the usefulness of the computer-based component of the manufacturing process. A ty...

Bend sequencing and tool selection have long been the main hurdles for achieving automatic process planning for sheet metal bending. In this unique process, the complex shape and position transitions of workpieces make it hard to obtain a collision-free operation plan. The time-consuming involvement of human experts is often required to solve more complex problems. This paper presents a tool se...

this paper presents a control model of the hydroforming and the dual hydroforming process of atube. the theoretical part includes calculations to measure the change in tube thickness through thedeveloped process. the hydroforming and the dual hydroforming processes are simulated in thesolidsimulation software and the static and the dynamic simulations are modeled. theobtained results for the t-...