MILLING – Cutting parameters, machine time calculation
Milling operation – Plain milling, side & face milling, form milling, gang milling, end milling, face milling, T slot milling, slitting
GEAR CUTTING – Gear cutting on milling machine – dividing head and indexing method, gear hobbing, principle of operation, advantages & limitation, hobbing tech, gear shaping, gear finishing process
MILLING – Cutting parameters, machine time calculation
Milling operation – Plain milling, side & face milling, form milling, gang milling, end milling, face milling, T slot milling, slitting
GEAR CUTTING – Gear cutting on milling machine – dividing head and indexing method, gear hobbing, principle of operation, advantages & limitation, hobbing tech, gear shaping, gear finishing process
Whole lathe machine in brief which any one can understand easily and quickly.
A Perfect ppt to get knowledge about lathe machine, its parts, operations etc.
This presentation describes the cylindrical grinding process and types of operations and machines in this process, which is why useful topic B.Tech mechanical of fourth sem students. This explains about the overview on the external cylindrical grinding process.
Milling operations-types of milling cutter. Gear cutting – forming and generation principle and construction of gear milling, hobbing and gear shaping processes –finishing of gears.
Whole lathe machine in brief which any one can understand easily and quickly.
A Perfect ppt to get knowledge about lathe machine, its parts, operations etc.
This presentation describes the cylindrical grinding process and types of operations and machines in this process, which is why useful topic B.Tech mechanical of fourth sem students. This explains about the overview on the external cylindrical grinding process.
Milling operations-types of milling cutter. Gear cutting – forming and generation principle and construction of gear milling, hobbing and gear shaping processes –finishing of gears.
Milling Machine - Types, various operations, Accessories, and attachments,
2.Grinding Machine - Types, various operations, Accessories, and attachments,
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This document is a research paper about gears manufacturing and production technique, which is one of the most known domain of industrial engineering and production. since gears are used in many applications to transmit motion and movement. So study about them is a must in industrial engineering application.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
1. DR. J.N. MEHTA GOVT. POLY. AMRELI
MECHANICAL DEPARTMENT
MILLING CUTTER
PREPARED BY:DHIREN P PATEL
5TH SEM MECH.ENGG.
(096110319530)
2. MILLING CUTTER
A milling cutter is a special type of cutting tool which has multiple cutting edges.
There are many advantages of milling cutters compared to single point cutting tool.
1) High machining
2) Completes required machining operation in required time.
4. MILLING CUTTER MATERIALS
Cutter Characteristics:- Harder than metal being
machined
- Strong enough to
withstand cutting pressures
- Tough to resist shock
resulting from contact
- Resist heat and abrasion
of cutting
- Available in various sizes
and shapes
High-Speed Steel:- Iron with additives
- Carbon: hardening agent
- Tungsten and Molybdenum: enable steel to
retain hardness up to red heat
- Chromium: increases toughness and wear
resistance
- Vanadium: increases tensile strength
- Used for most solid milling cutters
Cemented-Carbide :- Higher rates of production (3-10 times faster)
- Must select proper type of carbide
- Straight tungsten carbide: cast iron, plastics
- Tantalum carbide: low/medium-carbon steel
- Tungsten-titanium carbide:
high-carbon steel
5. MILLING CUTTER ARE OF DIFFERENT TYPES,THEY ARE CLASSIFIED BASED ON
VARIOUS FACTORS
1) Based on constructional features of the tooth of milling cutter
- Solid teeth milling cutter
- Inserted teeth milling cutter
- Tipped teeth milling cutter
2) According to the relief characteristics
- Profile relieved milling cutter
- Form relieved milling cutter
3) Based on methods used for mounting
- Arbour type
- Facing type
- Shank type
4) According to the direction of rotation of cutter
- Right hand rotational milling cutter
- Left hand rotational milling cutter
5) According to the direction of helix
- Parallel or straight teeth milling cutter
- Right hand helical milling cutter
- Left hand helical milling cutter
- Alternate helical milling cutter
6) According to purpose or use of cutter
- Standard milling cutter
- Special milling cutter
6. THERE ARE MANY TYPES OF STANDARD MILLING CUTTERS SOME OF THEM
ARE:1) Plain milling cutter
- Light duty plain milling cutter
- Heavy duty plain milling cutter
- Helical plain milling cutter
2) Side milling cutter
- Plain side milling cutter
- Staggered teeth side milling cutter
- Half side milling cutter
- Interlocking side milling cutter
3) Metal slitting saw
- Plain metal slitting saw
- Staggered teeth metal slitting saw
4) Angle milling cutter
- Single angle milling cutter
- Double angle milling cutter
5) End mill
- Taper shank end mill
- Straight shank end mill
- Shell end mill
6) T-slot milling cutter
9) Formed cutter
7) Woodruff key slot milling cutter
- Convex milling cutter
8) Fly cutter
- Concave milling cutter
7. PLAIN MILLING CUTTER
- Once widely used
- Cylinder of high-speed steel with teeth
cut on periphery
- Used to produce flat surface
- Several types
- Light-duty
- Light-duty helical
- Heavy-duty
- High-helix
SIDE MILLING CUTTER
- Comparatively narrow cylindrical milling
cutters with teeth on each side and on periphery
- Used for cutting slots and
for face and straddle milling
operations
- Free cutting action at high
speeds and feeds
- Suited for milling deep,
narrow slots
8. FACE MILLING CUTTER
• Generally over 6 in. in diameter
- Have inserted teeth made of high-speed steel
head in place by wedging device
• Most cutting action occurs
at beveled corners and
periphery of cutter
• Makes roughing and
finishing cuts in one pass
END MILLING CUTTER
• Face milling cutters under 6 inch
• Solid, multiple-tooth
cutters with teeth on face and periphery
• Held on stub arbor
- May be threaded or use
key in shank to drive cutter
9. ANGULAR CUTTERS
-Teeth neither parallel nor perpendicular to cutting axis
- Used for milling angular surfaces
- Grooves, serrations, chamfers and reamer teeth
- Divided into two groups
- Single-angle milling cutters
- Double-angle milling cutters
- Single-angle
- Teeth on angular surface
- May or may not have teeth on flat
- 45º or 60º
- Double-angle
- Two intersecting angular surfaces
with cutting teeth on both
- Equal angles on both side of line
at right angle to axis
10. FORMED CUTTERS
- Incorporate exact shape of part to be produced
- Useful for production of small parts
- Each tooth identical in shape
- Sharpened by grinding tooth face (may have positive, zero or negative rake)
- Important to maintain original rake
- Difficult to sharpen
TYPES OF FORMED CUTTERS
Concave
Convex
Gear Tooth
11. SCHEMATIC VIEWS OF CONVENTIONAL UP AND DOWN MILLING
The basic function of milling machines is to produce flat surfaces in any
orientation as well as surfaces of revolution, helical surfaces and contoured
surfaces of various configurations. Such functions are accomplished by slowly
feeding the work piece into the equispaced multiedge circular cutting tool
rotating at moderately high speed as indicated in Fig. Up milling needs
stronger holding of the job and down milling needs backlash free screw-nut
systems for feeding.
Cutting motion
Cutting motion
12. ADVANTAGES OF MILLING CUTTER
1)The inserts rotate as they cut.
2) Faster cutting speeds allow faster feed rates.
3) Rotating inserts last longer
4) Interrupted cuts are no problem
5) Heat in the chip increases with efficiency
6) "Roll-Shearing" Eliminates breakout in cast iron parts.
7) There's less wear and tear on your machinery
DISADVANTAGES OF MILLING CUTTER
There are also disadvantages by employing a milling
cutter.
1) High cost
2) High cutting temperatures are generated
3) High maintenance cost