This document discusses cutting tool classification and characteristics. It describes single-point tools that have one cutting edge used for turning operations, and multiple cutting edge tools used for drilling and milling that achieve motion through rotation. Common cutting tool materials are also summarized, including high-speed steel, cast cobalt steel, carbide inserts, and tungsten and titanium carbides. Safety precautions for operating machines like lathes are also outlined.
A clear view on Shaping , slotting and planning machines kinematic scheme and their principal parts and difference between planning and shaping machine
A clear view on Shaping , slotting and planning machines kinematic scheme and their principal parts and difference between planning and shaping machine
The one of the major part of CNC Machine is Cutting tools or Inserts. We need to study the Cutting tools and its nomenclature throughly and also study the materials of Cutting tools and types of tools. The Cutting tools are used to remove unwanted materials in the workpiece and to provide a good finish for a customers need.So the Cutting tools is very important to CNC Machine, if there is no cutting tool in CNC Machine, there is no CNC Machine. So the cutting tools are very important to all CNC Machines
this ppt pdf beneficial for 1st year engineering student who studying workshop technology. in this pdf types of joining, gas welding, arc welding, spot welding, tig welding, mig welding, soldering brazing and different welding defect has been discussed.
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.
The one of the major part of CNC Machine is Cutting tools or Inserts. We need to study the Cutting tools and its nomenclature throughly and also study the materials of Cutting tools and types of tools. The Cutting tools are used to remove unwanted materials in the workpiece and to provide a good finish for a customers need.So the Cutting tools is very important to CNC Machine, if there is no cutting tool in CNC Machine, there is no CNC Machine. So the cutting tools are very important to all CNC Machines
this ppt pdf beneficial for 1st year engineering student who studying workshop technology. in this pdf types of joining, gas welding, arc welding, spot welding, tig welding, mig welding, soldering brazing and different welding defect has been discussed.
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.
The given presentation consists of introduction to lathe machines, working principles, classification, constructions, accessories, lathe operations, work holding devices, etc
Fundamentals of Metal cutting and Machining Processes
MACHINING OPERATIONS AND MACHINING TOOLS
Turning and Related Operations
Drilling and Related Operations
Milling
Machining Centers and Turning Centers
Other Machining Operations
High Speed Machining
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.
A STUDY ON MULTI-OBJECTIVE OPTIMIZATION OF PLUNGE CENTERLESS GRINDING PROCESS IAEME Publication
Round component with the minimum value of surface roughness and roundness error is the goal of most of the fine machine processes. This paper presents the research on optimization of plunge centerless grinding process when grinding the 20X-carbon infiltration steel (ГOCT standard -
Russia) to achieve the minimum value of surface roughness and roundness errors. The input parameters are center height angle of the workpiece ( β ), longitudinal dressing feed-rate ( sd S ),plunge feed-rate ( k S ) and control wheel velocity ( dd v ) using the result of 29 sets in central composite design matrix to show the two second orders of surface rounghness and roundness error models.
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Turin Startup Ecosystem 2024 - Ricerca sulle Startup e il Sistema dell'Innov...Quotidiano Piemontese
Turin Startup Ecosystem 2024
Una ricerca de il Club degli Investitori, in collaborazione con ToTeM Torino Tech Map e con il supporto della ESCP Business School e di Growth Capital
Lecture slide titled Fraud Risk Mitigation, Webinar Lecture Delivered at the Society for West African Internal Audit Practitioners (SWAIAP) on Wednesday, November 8, 2023.
Seminar: Gender Board Diversity through Ownership NetworksGRAPE
Seminar on gender diversity spillovers through ownership networks at FAME|GRAPE. Presenting novel research. Studies in economics and management using econometrics methods.
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Falcon stands out as a top-tier P2P Invoice Discounting platform in India, bridging esteemed blue-chip companies and eager investors. Our goal is to transform the investment landscape in India by establishing a comprehensive destination for borrowers and investors with diverse profiles and needs, all while minimizing risk. What sets Falcon apart is the elimination of intermediaries such as commercial banks and depository institutions, allowing investors to enjoy higher yields.
The European Unemployment Puzzle: implications from population agingGRAPE
We study the link between the evolving age structure of the working population and unemployment. We build a large new Keynesian OLG model with a realistic age structure, labor market frictions, sticky prices, and aggregate shocks. Once calibrated to the European economy, we quantify the extent to which demographic changes over the last three decades have contributed to the decline of the unemployment rate. Our findings yield important implications for the future evolution of unemployment given the anticipated further aging of the working population in Europe. We also quantify the implications for optimal monetary policy: lowering inflation volatility becomes less costly in terms of GDP and unemployment volatility, which hints that optimal monetary policy may be more hawkish in an aging society. Finally, our results also propose a partial reversal of the European-US unemployment puzzle due to the fact that the share of young workers is expected to remain robust in the US.
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The future of the Pi cryptocurrency is uncertain, and its success will depend on several factors. Pi is a relatively new cryptocurrency that aims to be user-friendly and accessible to a wide audience. Here are a few key considerations for its future:
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1. Mainnet Launch: As of my last knowledge update in January 2022, Pi was still in the testnet phase. Its success will depend on a successful transition to a mainnet, where actual transactions can take place.
2. User Adoption: Pi's success will be closely tied to user adoption. The more users who join the network and actively participate, the stronger the ecosystem can become.
3. Utility and Use Cases: For a cryptocurrency to thrive, it must offer utility and practical use cases. The Pi team has talked about various applications, including peer-to-peer transactions, smart contracts, and more. The development and implementation of these features will be essential.
4. Regulatory Environment: The regulatory environment for cryptocurrencies is evolving globally. How Pi navigates and complies with regulations in various jurisdictions will significantly impact its future.
5. Technology Development: The Pi network must continue to develop and improve its technology, security, and scalability to compete with established cryptocurrencies.
6. Community Engagement: The Pi community plays a critical role in its future. Engaged users can help build trust and grow the network.
7. Monetization and Sustainability: The Pi team's monetization strategy, such as fees, partnerships, or other revenue sources, will affect its long-term sustainability.
It's essential to approach Pi or any new cryptocurrency with caution and conduct due diligence. Cryptocurrency investments involve risks, and potential rewards can be uncertain. The success and future of Pi will depend on the collective efforts of its team, community, and the broader cryptocurrency market dynamics. It's advisable to stay updated on Pi's development and follow any updates from the official Pi Network website or announcements from the team.
1. Cutting Tool Classification
1.Single-Point Tools
• One cutting edge
• Turning uses single point tools
• Point is usually rounded to form a nose radius
2.Multiple Cutting Edge Tools
• More than one cutting edge
• Motion relative to work usually achieved by
rotating
• Drilling and milling use rotating multiple cutting
edge tools.
4. 4
Cutting Tool Characteristics
Hardness at elevated temperature (hot hardness)
Strength
Wear resistance
Permanent indentation resistance
Toughness
Repeated operations by retaining shape
No breakage or chipping off
Wear Resistance
Increased tool life
Chemical Stability or Inertness
Work piece or coolant
5. 5
Cutting Tool Materials
Carbon and medium alloy steels
Easily shaped & reshaped -- no high hot
hardness
• Drill bits
• Taps
• Broaches
• Reamers
High Speed Steel
High speed cutting
High toughness
Resistance to fracture
• Tungsten/molybdenum tools
6. 6
Cutting Tool Materials
Cast cobalt Steel
Good wear resistance
Hot hardness
Carbide inserts
Tungsten & Titanium carbides
Very high hardness
Very high resistance
10. 10
Cutting Conditions
Relative motion between the tool and work
The primary motion cutting speed
The tool moved laterally across the work, slower motion, feed
Penetration of the cutting tool below original work surface, depth
of cut
Collectively, speed, feed, and depth of cut are called the cutting
conditions
For certain operations, their product can be used to obtain the
material removal rate for the process:
RMR = vfd
where
— RMR the material removal rate in mm3/s, (in3/s),
— v the cutting speed in m/s, (ft/min),
— f the feed in mm, (in),
— d the depth of cut in mm, (in).
14. 14
Classification of Lathe Machine
Maximum diameter of work piece
machined or swing
Maximum distance between head stock &
tail stock
Length of the Bed
15. Components of Lathe Machines
1. Head stock (spindle, speed change
lever)
2. Tail stock (spindle, lock bolt)
3. Carriage (tool post, top slide, taper
attachment, compound rest, cross slide,
apron, lead screw etc.)
4. Bed
5. Legs
16. Tools of Lathe Machine
1. Left hand side tool (facing, turning & taper turning)
2. Right hand side tool
3. Outside threading tool (external threads)
4. Boring tool (internal facing, increasing hole &
smoothing)
5. Left side threading tool
6. Parting tool (separating work piece from other
material)
7. Knurling tool (hard work piece is pressed with it)
8. Revolving tool (supports work piece)
9. Drill chuck (to move the hole)
25. CNC LATHE
Computer Numerical Controlled (CNC) machines are
being used in every kinds of manufacturing
processes. In a CNC machine, functions like program
storage, tool offset and tool compensation, program-
editing capability, various degree of computation,
and the ability to send and receive data from a
variety of sources, including remote locations can be
easily realized through on board computer. The
computer can store multiple-part programs, recalling
them as needed for different parts.
46. Few More Precautions for Lathe
Machine
1. Machine should be operated by authorized
person.
2. Checkup for elect connections and lubricant
before working on machine.
3. Don’t wear watch & ring during work.
4. Wear Leather apron and boots
47. 47
Machine Shop Safety (Contd)
5. Never work alone
At least two workers must be in the shop when
power tools are being used
6. Never work when you are impaired
This includes when you are too tired, stressed or
hurried to work carefully
7. Safe conduct in the machine shop
Your conduct in the workshop should be safe and
responsible and not hurtful or damaging to any
worker/operator Concentrate on what you are doing
and if you start getting tired, please stop and take a
small break. Never try to rush tasks
48. 48
Machine Shop Safety (Contd)
8. Always wear closed toe shoes in the shop
Tools, chips and fixtures are sharp and often hot. Shoes will
help protect your feet from injury. Leather shoes are preferred
when machining
9. Eye protection is essential
Always wear safety glasses when working or cleaning tools
10. Remove or secure anything that might get caught in moving
machinery
Rings, necklaces, wrist watches, long hair and loose clothes
that get caught in tools can drag you along
49. 49
Machine Shop Safety (Contd)
11. Keep your hands away from sharp tools
Make sure that nothing that you do will cause you to be cut.
Use safety gloves to handle hot or sharp objects
12. Dust, chemicals and smoke can be dangerous
Work in well ventilated areas. Minimize contamination and
use appropriate protective equipment
13. Ask for guidance and help
Have shop staff check you out on a tool the first time you use
one with which you are unfamiliar
50. 50
Machine Shop Safety
14. Be careful while working
If you do not know how to do some thing, ask. Before starting,
study the machine and know which parts are moving, which
are stationary and which are sharp and may be potentially
dangerous. Listen to the machine and never leave the
machine running unattended
15. Clean up after yourself
Before you leave the shop, all tools must be returned to the
toolbox, the machine cleaned and wiped down and the floor
swept