Influence of Technological Parameters on Sheet Metal Punching Section Quality

2013 ◽  
Vol 734-737 ◽  
pp. 2488-2491
Author(s):  
Xian Chang Mao ◽  
Zheng Mei ◽  
Ren Yi Liu ◽  
Dai Song Luo
Keyword(s):  
Sheet Metal ◽  
Metal Cutting ◽  
Geometrical Parameters ◽  
Technological Parameters ◽  
Blank Holder ◽  
Current Trends ◽  
Jacking Force ◽  
Sheet Metal Cutting ◽  
Blanking Process

The section quality of sheet metal is influenced greatly by technological parameters during the blanking process, and it is valuable to research them. Base on the current trends and development of the sheet metal blanking, the technological parameters which influence the cutting face quality of blanking are introduced in detail, including blank holder force, Jacking force, mould structure and geometrical parameters, elastic medium, blanking speed, etc. The result shows that sheet metal cutting face quality of blanking can be improve effectively by reasonable parameters.

scholarly journals Automatic Pneumatic Sheet Metal Feeding and Cutting Machine

2021 ◽  
Vol 9 (11) ◽  
pp. 150-165
Author(s):  
Mr. Pratik Gujarathi
Keyword(s):  
Sheet Metal ◽  
High Speed ◽  
Metal Cutting ◽  
Control Valve ◽  
Everyday Objects ◽  
Cutting Machine ◽  
Long Time ◽  
High Production ◽  
Sheet Metal Cutting

Abstract: Today in the rapid competition of the industries to get the best quality of the product in the minimum required time is the main aim of industries. To get the best quality and maximum production most advanced machines are used. But there are no facts that use only the advanced machines, to maintain their performance is real requirement of the industries, also to give proper facilities to the workers with good environmental condition and to reduce their efforts is one of the objects to achieve the best quality and high production. Sheet metal is simply a metal formed into thin and flat pieces. It is one of the fundamental forms used in metal working and can be cut and bent into a variety of different shapes. Countless everyday objects are constructed of the material. Thicknesses can vary significantly, although extremely thin thicknesses are considered foil or leaf, and pieces thicker than 6 mm (0.25 in) are considered plate. Sheet metal also has applications in car bodies, airplane wings, medical tables, roofs for buildings (Architectural) and many other things. Sheet metal of iron and other materials with high magnetic permeability, also known as laminated steel cores, has applications in transformers and electric machines. There are three primary procedures in Layout. They are Parallel, Radial, and Triangulation. The major aim to our experiment is to study about pneumatic control system, study about double acting cylinder, study about the advantage of pneumatic hand operated valve and study about high speed blade. We are using scissors for simple sheet metal cutting. It is a manual method so that sheet metals are to be wasted sometimes because of mistakes happened such as wrong dimensions etc., and also even a simple cutting may take long time. We are using a pneumatic system for sheet metal cutting in an easy way. It is operated by a pneumatic hand lever of two ways control valve. Control valve is operated by a compressor. Keywords: Pneumatic, Automation, Sheet Metal, Pneumatic, Valve, Cutting Machine

Design and development of automatic sheet metal cutting machine

2020 ◽  
Author(s):  
R. Muthu Siva Bharath ◽  
Arunkumar Gopal ◽  
I. Maria James ◽  
S. Lakshmi Sankar
Keyword(s):  
Sheet Metal ◽  
Metal Cutting ◽  
Metal Cutting Machine ◽  
Design And Development ◽  
Cutting Machine ◽  
Sheet Metal Cutting

scholarly journals Impact of Core Sheet Cutting Method on Parameters of Induction Motors

Energies ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1960 ◽  
Author(s):  
Maria Dems ◽  
Krzysztof Komeza ◽  
Witold Kubiak ◽  
Jacek Szulakowski
Keyword(s):  
Sheet Metal ◽  
Metal Cutting ◽  
Induction Motors ◽  
Dominant Role ◽  
Accurate Determination ◽  
Design Stage ◽  
Average Width ◽  
Core Losses ◽  
The Impact ◽  
Sheet Metal Cutting

The method of cutting motor core sheets causes a change in their magnetic properties and core losses, especially additional losses. Reducing motor losses is very important because of the fulfillment of increasingly stringent requirements set by international regulations for reducing electricity consumption. Due to fact that more and more often induction motors are supplied with high-frequency voltage, core losses are beginning to play a dominant role in the motor’s loss balance. That is why accurate determination of these losses is very important and cutting has a significant impact on them. This report shows how the method of cutting sheet metal affects losses in the finished induction motor working in a wide frequency range. The paper presents the impact of various motor core fabrication technologies on its operational parameters and an approximate way of including this impact in analytical calculations at the design stage of new machine designs, as it is necessary to use sheet metal cutting technologies such as laser or electrical discharge machining (EDM) at the prototype stage. The proposed method is based on measurements of sheet parameters made on toroidal samples with appropriately selected dimensions, so that the width of the sample corresponds to the average width of the motor core elements.

Study of the Parameters of Deep Drawing Process Based on the Simulation of Dynaform

2012 ◽  
Vol 249-250 ◽  
pp. 51-58
Author(s):  
Qing Wen Qu ◽  
Tian Ke Sun ◽  
Shao Qing Wang ◽  
Hong Juan Yu ◽  
Fang Li
Keyword(s):  
Friction Coefficient ◽  
Sheet Metal ◽  
Deep Drawing ◽  
Drawing Process ◽  
Blank Holder Force ◽  
Blank Holder ◽  
Deep Drawing Process ◽  
Drawing Die ◽  
Drawing Speed

A simulation of deep drawing process on the sheet metal was done by using Dynaform, the influence of blank holder force, deep drawing speed and friction coefficient on the forming speed of sheet metal in the deep drawing process were got. The forming speed of sheet metal determines the quality of deep drawing, in the deep drawing process the blank holder force and the deep drawing speed are controllable parameters, the friction coefficient can be intervened and controlled, and it’s a manifestation of the interaction of all parameters, the main factors which influence the friction coefficient just have blank holder force, deep drawing speed and lubrication except the material. The conclusion of this study provides the basic data for the analysis of the lubrication of mould, the study of lubricant and the prediction of the service life of deep drawing die.

Optimization of Process Parameters of U-Shape Sheet Metal Based on Compensation of Geometric Springback Value

2012 ◽  
Vol 455-456 ◽  
pp. 1122-1127
Author(s):  
Xiang Wu Jia ◽  
Shu Gen Hu
Keyword(s):  
Sheet Metal ◽  
Process Parameters ◽  
New Method ◽  
Blank Holder Force ◽  
Technological Parameters ◽  
Blank Holder ◽  
Optimization Of Process Parameters

Taking example for U-shape sheet metal, the paper studies the forming and springback process with Dynaform, how much the springback influenced by several factors is studied, including die figure, stamping velocity, the stroke, the blank holder force and friction. Then a useful conclusion can be reached: Using die figure to optimize the technological parameters remarkably reduce the springback value, it provides a new method to control and solve the springback issue.

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