scholarly journals Technology-Based Sheet Metal Classification and Coding System

2011 ◽  
Vol 36 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Peter Šugár ◽  
J. Šugárová ◽  
M. Kolník
Keyword(s):  
Sheet Metal ◽  
Group Technology ◽  
Technical Standard ◽  
Coding System ◽  
New Approach ◽  
Process Plan ◽  
Coding Schemes ◽  
Technology Applications ◽  
Machine Parts ◽  
Design Characteristics

Technology-Based Sheet Metal Classification and Coding SystemGroup technology (GT) concept uses design similarity measure to identify the most similar design and retrieve a useful process plan. One of the existing formal methods of machine parts classifying for the group technology applications is the coding and classification. The researchers have developed many different GT coding schemes, which very precisely describe the design characteristics of the parts, but many of them do not explicitly describe the process plan. The paper presents a new approach to the sheet metal part coding and classification with plan-based attributes implementation in accordance with the technical standard STN 226001.

Aanalysis of springback phenomenon in pipe bending

2014 ◽  
Vol 11 (3) ◽  
pp. 229-232
Author(s):  
Rahul Hingole ◽  
Vilas Nandedkar
Keyword(s):  
Sheet Metal ◽  
Research Work ◽  
Deep Understanding ◽  
Beam Theory ◽  
New Approach ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
Before And After ◽  
Forming Tools ◽  
Pipe Bending

The term springback is defined as the change in geometry of a component after forming, when the forces are removed from forming tools. As springback affects the final shape of the part, it can lead to significant difficulties in the assembly of component when springback is not proper. This problem leads to fabrication of inconsistent sheet metal parts; the elastic strain recovery in the material after the tooling is removed. Bendingis the plastic deformation of metals about a linear axis called the bending axis with little or no change in the surface area. Bending types of forming operations have been used widely in sheet metal forming industries to produce structural stamping parts such as braces, brackets, supports, hinges, angles, frames, channel and other nonsymmetrical sheet metal parts. Among them, quite a few efforts have been made to obtain a deep understanding of the springback phenomenon. The beam theory has been applied to formulate the curvature before and after loading of pipe. This research work has focused on study effect of springback effect with a new approach. The ANSYS software is used to analyze spring back effect. The detail study of this springback effect is presented in this paper.

Coding Body Language in Sports: The Nonverbal Behavior Coding System for Soccer Penalties

2020 ◽  
pp. 1-15
Author(s):  
Philip Furley ◽  
Alexander Roth
Keyword(s):  
Nonverbal Behavior ◽  
Arm Movement ◽  
Emotional Valence ◽  
The Body ◽  
Emotional States ◽  
Coding System ◽  
Temporal Precision ◽  
Intercoder Reliability ◽  
Coding Schemes ◽  
Behavior Coding

Nonverbal behavior (NVB) plays an important role in sports. However, it has been difficult to measure, as no coding schemes exist to objectively measure NVB in sports. Therefore, the authors adapted the Body Action and Posture Coding System to the context of soccer penalties, validated it, and initially used this system (Nonverbal Behavior Coding System for Soccer Penalties [NBCSP]) to explore NVB in penalties. Study 1 demonstrated that the NBCSP had good to excellent intercoder reliability regarding the occurrence and temporal precision of NVBs. It also showed that the coding system could differentiate certain postures and behaviors as a function of emotional valence (i.e., positive vs. negative emotional states). Study 2 identified differences in NVB for successful and missed shots in a sample of penalties (time spent looking toward the goal, toward the ground, right arm movement, and how upright the body posture was). The authors discuss the utility of the coding system for different sport contexts.

Computer-Aided Process Planning of Strip Layout in Progressive Dies

2011 ◽  
Vol 110-116 ◽  
pp. 5106-5110
Author(s):  
Alan C. Lin ◽  
Dean K. Sheu
Keyword(s):  
Sheet Metal ◽  
Layout Design ◽  
New Approach ◽  
Computer Aided Process Planning ◽  
Step Process ◽  
Strip Layout ◽  
Evaluation Functions ◽  
Progressive Dies ◽  
Computer Aided ◽  
Manufacturing Knowledge

This paper proposes a two-step process which uses the knowledge gathered in sheet-metal manufacturing practice as the basis to find proper layouts of strip in progressive dies. In the first step, manufacturing knowledge is used to formulate various rules to cluster the punches into five categories for reducing the searching space of feasible layouts. Evaluation functions are then applied to find the better ones from the feasible layouts. This two-step process provides a new approach to solving the problem of “explosive combinations” in strip layout design

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