Forging is the operation where the metal is heated and then a force is applied to manipulates the metals in such a way that the required final shape is obtained.
The fundamentals of welding arc, mechanisms of electron
emission, different zones in welding arc, electrical aspects related with welding arc, arc forces.
and their significance in welding.
Arc welding process that produces coalescence of metals by heating them with a constricted arc between an electrode and the work piece (transferred arc) or between the electrode and the water-cooled constricting nozzle (non transferred arc) .
Plasma: A gaseous mixture of positive ions, electrons and neutral gas molecules
Electron Beam Welding is a fusion welding process in which a beam of high-velocity electrons is applied to the material to be joined. The work-piece melt as the kinetic energy of the electrons is transformed into heat upon impact. The EBW process is well-positioned to provide industries with highest quality welds and machine designs that have proven to be adaptable to specific welding tasks and production environments.
This slide is all about Metal cutting and Machining tools insights. It covers Mechanics of metal cutting, orthogonal and oblique machining, Tools geometry, Types of Chips, and Tools Signature.
Forging is the operation where the metal is heated and then a force is applied to manipulates the metals in such a way that the required final shape is obtained.
The fundamentals of welding arc, mechanisms of electron
emission, different zones in welding arc, electrical aspects related with welding arc, arc forces.
and their significance in welding.
Arc welding process that produces coalescence of metals by heating them with a constricted arc between an electrode and the work piece (transferred arc) or between the electrode and the water-cooled constricting nozzle (non transferred arc) .
Plasma: A gaseous mixture of positive ions, electrons and neutral gas molecules
Electron Beam Welding is a fusion welding process in which a beam of high-velocity electrons is applied to the material to be joined. The work-piece melt as the kinetic energy of the electrons is transformed into heat upon impact. The EBW process is well-positioned to provide industries with highest quality welds and machine designs that have proven to be adaptable to specific welding tasks and production environments.
This slide is all about Metal cutting and Machining tools insights. It covers Mechanics of metal cutting, orthogonal and oblique machining, Tools geometry, Types of Chips, and Tools Signature.
Mechanical processes
Machining and grinding (will be covered in later classes)
Shearing, blanking, and punching (sheet metalworking operations)
Ultrasonic machining (USM)
Water jet cutting (WJC or hydro-jet)
Abrasive water jet cutting (AWJC or abrasive hydro-jet)
Similar to Introduction to Non-Traditional Machining (20)
This presentation gives the information about introduction to control systems
Subject: Control Engineering as per VTU Syllabus of Aeronautical Engineering.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
Disclaimer:
The contents used in this presentation are taken from the text books mentioned in the references. I do not hold any copyrights for the contents. It has been prepared to use in the class lectures, not for commercial purpose.
This template was created for DSCE, Aeronautical students. You have to replace the institution details.
Create a separate document for each chapter, so that under numbering, you can change the sequence of chapter main heading according to chapter wise. i.e., 2.1, 2.2 etc.
Same procedure is applicable to Figure caption and Table caption.
This template can be used to generate, BE seminar report, M.Tech and Ph.D thesis also.
This template is created to assist UG students in generating their thesis without much hassle.
Contents are taken from VTU website. I don’t hold any copyright for this document.
Hareesha N G
Assistant Professor
DSCE, Bengaluru
This document is an Instruction manual for Computer aided machine drawing
Subject: Computer aided machine drawing (CAMD)
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
This document gives the class notes of Unit-8: Torsion of circular shafts and elastic stability of columns. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
This document gives the class notes of Unit-8: Torsion of circular shafts and elastic stability of columns. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
This document gives the class notes of Unit 6: Bending and shear Stresses in beams. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
This document gives the class notes of Unit 5 shear force and bending moment in beams. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
This document gives the class notes of Unit 3 Compound stresses. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
This document gives the class notes of Unit 2 stresses in composite sections. Subject: Mechanics of materials.
Syllabus contest is as per VTU, Belagavi, India.
Notes Compiled By: Hareesha N Gowda, Assistant Professor, DSCE, Bengaluru-78.
This document contains: Mechanics of Materials: Question bank from old VTU Question papers ; Pprepared by Hareesha N G, DSCE, Bengaluru. These questions are picked from last 06 years of old VTU question papers.
This presentation was prepared for a seminar. I have shared this with you. This is not related to curriculam. Please writre your criticisms to: hareeshang@gmail.com.
This presentation gives the information about Screw thread measurements and Gear measurement of the subject: Mechanical measurement and Metrology (10ME32/42) of VTU Syllabus covering unit-4.
This presentation gives the information about Force, Pressure and Torque measurements of the subject: Mechanical measurement and Metrology (10ME32/42) of VTU Syllabus covering unit-6.
This presentation gives the information about mechanical measurements and measurement systems of the subject: Mechanical measurement and Metrology (10ME32/42) of VTU Syllabus covering unit-5.
This CIM and automation laboratory manual covers the G-Codes and M-codes for CNC Turning and Milling operations. Some concepts of Robot programming are also introduced.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
2. Review of Machining
• Machining is a generic term, applied to material removal
processes.
• Traditional machining: turning, milling, drilling, grinding, etc.
• Metal cutting refers to processes in which excess metal is
removed by a harder tool, through a process of extensive plastic
deformation or controlled fracture.
• Non-traditional machining: chemical machining, ECM, EDM,
EBM, LBM, machining of non-metallic materials.
6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 2
3. Nontraditional Machining
• Chemilling
• Electrochemical machining
• Electrical discharge machining
• High energy beam machining
• Water jet/Abrasive water jet machining
• Ultrasonic machining
• Machining of non-metallic materials
6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 3
4. Chemical Machining (Chemilling)
• Used to produce shallow
cavities (<12mm) on large
areas.
• A maskant is applied over
areas you don’t want to
machine.
• Place the part in a chemical
bath (acid or alkali
depending upon the metal)
• Control temperature and
time of exposure to control
material removal
• Material removal rate is
slow, 0.025-0.1 mm/min
6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 4
5. Electro-Chemical Machining (ECM)
• Works on the principle of
electrolysis
• Die is progressively
lowered into workpiece as
workpiece is dissociated
into ions by electrolysis
• Electrolytic fluid flows
around workpiece to
remove ions and maintain
electrical current path
• Low DC voltage, very High
current (700 amps).
• Material removal rate is
2.5-12 mm/min
depending on current
density.6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 5
6. Electrical Discharge Machining
(EDM)
• The tool (electrode) usually acts as a
cathode and is immersed in a
dielectric fluid.
• DC voltage (~300V) is applied in
modulated pulses (200-500K Hz).
• The dielectric breaks down (sparking
at around 12,000 deg F) when gap is
small.
• The sparks erodes the workpiece in
the shape of the tool.
• The tool is progressively lowered as
the workpiece erodes.
• Material removal rate is typically 300
mm3/min
• Tool wear ratio 3:1 with metallic
electrodes, 3:1-100:1 with graphite
electrodes6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 6
7. Die Sinker and Wire EDM
• Die sinker EDM
– The die (copper or graphite)
sinks into the part as it sparks
away the workpiece.
– Most common injection
molding die process.
• Wire EDM
– The electrode (brass, copper, W,
Mo, 0.08-3 mm) is a wire that
traverses through the part.
– Common for extrusion dies.
• Electrical discharge drilling
• Electrical discharge grinding
6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 7
8. Examples of Die Sinker and Wire EDM
6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 8
9. Water Jet and Abrasive Water Jet
Cutting
• High pressure
water (20,000-
60,000 psi).
• Can cut
extremely thick
parts (5-10
inches possible).
• Thickness
achievable is a
function of
speed.
6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 9
10. Abrasive Waterjet and Waterjet
Part Examples
6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 10
11. High Energy Beam Machining
(a) Electron beam machining
Cutting and hole making on thin
materials; very small holes and
slots (0.1-0.3mm depending on
thickness); heat affected zone;
require vacuum, expensive
equipment; 1-2 mm3/min.
(b) Laser beam machining
Cutting and hole making on thin
materials; heat-affected zone; does
not require a vacuum; but
expensive equipment; consume
much energy; 0.5-7.5 mm/min
depending on thickness.6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 11
12. Machining of Nonmetallic Materials
• Machining of ceramics:
– Abrasive machining, including abrasive water
jet machining
– Laser beam machining
– Laser assisted machining
Laser assisted machining6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 12
14. Machining of Plastics and Composites
• Plastics need to be carefully supported.
• Requires large rake and relief angles, high cutting speed, and
low feed.
• Trimming of plastic parts using water jet cutting or abrasive
water jet cutting.
• Common problems in cutting composites
– Delamination, poor edge finish, and fiber pull out.
• Use abrasive water jet cutting.
• Metal matrix composites such as carbide tool bits can be
machined using diamond tools, EDM, and ECM.
6/3/2014 Hareesha N G, Dept of Aero Engg, DSCE 14