NALS Certificate2016

•

0 likes•112 views

Lesley Ward

Viewers also liked

Remekh pravo dpa_11ukr_(191-12)_s

sergius3000

約翰一書回歸真理121014

LEM Devotionals

Оценка радиационного гамма- фона в здании и на пришкольной территории МБОУ «...

rorbic

Deep drawing is one of widely used sheet metal working process in industries to produce cup shaped components at a very high rate. The present study aims to determine the optimum shape of blank for deep drawing of cylindrical cup without ears. Earing is one of the major defects observed during deep drawing process due to anisotropic nature of sheet metal. Earing is defined as formation of waviness on uppermost portion of deep drawn cup. Earing defect occurs due to non-uniform material properties within plane of sheet (i.e. planar anisotropy). Knowledge about ear formation in deep drawing process allows a prior modification of process which can result in defect free final product with financial saving and time. In the present study efforts have been made to study the earing problem in deep drawing of cylindrical cups by finite element modeling software HYPERWORK-6.12. The blank material as EN10130Fe01 mild steel sheet of 1mm thickness has been considered as it has wide application a fabricating critical automobile parts. Mechanical parameters of mild steel are incorporated in finite element simulation of deep drawing process. Significant earing was observed at rolling and transverse direction on deformed cup form circular blank. Modification of initial blank is done to find the optimum blank to reduce the earing defect. Optimal blank shows significant reduction of % earing height, reduction in drawing load & improvement in maximum thickness variations.

Finite Element Simulation for Determining the Optimum Blank Shape for Deep Dr...

IJERA Editor

Catalog Urban Ambition

Mihai Pavel

The parameters of the immobilized process of Corynebacterium glutamicum on kappa carrageenan were identified by Plackett-Burman matrix, and the experiments were designed by response surface methodology having the central composite designs (RSM-CCD). The maximum yield of cell immobilization on kappa carrageenan carrier reached at 78% ± 2%. Optimal parameters were 3 grams kappa carrageenan per 100 militters sterile water and 58.58 million cfu/mL, forming gels at 100C for 25 minutes and the speed when soaking particles of 150 rpm for 120 minutes in 0.58 M potassium chlorua solvent. The immobile finished products are applied in L-lysine production, their reusing ability is 3 times and the total yield of L-lysine was accumulated 93 g/L in medium during 96 fermented hours. The L-lysine productivity of the batch fermentation was 0.969 g.L-1 .h-1 . And the set-up storage conditions are the mixed solvent of CaCl2 0.5% (w/v) and KCl 0.5% (w/v); pH is 7.0 in 40C. After 60 storage days, the survival cell rate was remained 51%.

Determination of Immobilization Process Parameters of Corynebacterium glutami...

IJERA Editor

310 1992 zb_v20130610

Zákony pre ľudí

Introduction of green concepts in machining operations is being envisaged by introducing different echo friendly cooling systems in the modern machine shops. The role of cutting fluids usage in metal cutting is predominant as it influences the surface quality and production cost. The current work mainly focuses on the study of chip tool interactions viz. contact pressure, temperature and chip flow pattern on the rake surface in plain turning operation for different cutting parameters without any cooling medium and analyze the influence of high pressure air jet as the cooling medium on the chip tool interactions like contact pressure reducing the tool wear, cutting temperatures thereby increasing tool life.

Study the Chip Tool Interactions & Tool Life in Plain Turining with High Velo...

IJERA Editor

Simple design and efficiency make pulsejet engines attractive for aeronautical short-term operation applications. An active control system extends the operating range and reduces the fuel consumption considerably so that this old technology might gain a new interest. During the operations of these pulsejet engines the surfaces of engine will get more heated. In order to cool the engine surface and to get more thrust we have attached an additional component called secondary inlet in that valve less pulsejet engine. The pulsejet is the only jet engine combustor that shows a net pressure gain between the intake and the exhaust. The pulsejet is the only jet engine combustor that shows a net pressure gain between the intake and the exhaust. We choose the LOCKWOOD’s design of pulsejet engine. By using the CFD analysis we have analysed the modified design of valveless pulsejet engine. This project provides an overview of this unique process and the results of these design modifications are reported.

Design and Optimization of Valveless Pulsejet Engine

IJERA Editor

Saffran pdf

Bergdalskolan

Sigma Infotech - Web Development Company

scotttsummer

Cost optimization of using geogrids vs piles in the foundation of interchange...

IAEME Publication

Structural damage mitigation in discrete structures using multiple actuators

IAEME Publication

Certificate of Training - Emergency Procedures - General Evac & First Response

Dannielle Backhouse

Viewers also liked (14)

Remekh pravo dpa_11ukr_(191-12)_s

約翰一書回歸真理121014

Оценка радиационного гамма- фона в здании и на пришкольной территории МБОУ «...

Finite Element Simulation for Determining the Optimum Blank Shape for Deep Dr...

Catalog Urban Ambition

Determination of Immobilization Process Parameters of Corynebacterium glutami...

310 1992 zb_v20130610

Study the Chip Tool Interactions & Tool Life in Plain Turining with High Velo...

Design and Optimization of Valveless Pulsejet Engine

Saffran pdf

Sigma Infotech - Web Development Company

Cost optimization of using geogrids vs piles in the foundation of interchange...

Structural damage mitigation in discrete structures using multiple actuators

Certificate of Training - Emergency Procedures - General Evac & First Response

NALS Certificate2016

Recommended

Recommended

More Related Content

Viewers also liked

Viewers also liked (14)