Friction.ppt - Google Slides

Friction.ppt - Google Slides. Friction. Force that opposes sliding motion. Friction: Affects objects in contact. Opposes sliding forces up to a maximum. Depends on the surfaces involved and the force pushing them together. What is friction caused by? Tiny bumps in all material come into contact.

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For his spread of the Christian faith, two forces were needed: Spiritual – already existed as the Western Church. Secular – the political authority to rule. Charlemagne, also known as Charles the Great, built a powerful kingdom as ruler of the Franks (768-814).

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Times New Roman Arial Wingdings Tahoma TRAIN_S 1_TRAIN_S 2_TRAIN_S 3_TRAIN_S 4_TRAIN_S 5_TRAIN_S 6_TRAIN_S 7_TRAIN_S 8_TRAIN_S 9_TRAIN_S 10_TRAIN_S 11_TRAIN_S Microsoft Clip Gallery HAND AND POWER TOOL SAFETY DIFFERENCE BETWEEN Hand Tools AND Power Tools PowerPoint Presentation 5 Basic Rules GENERAL "Hand Tool" SAFETY RULES GENERAL Hand ...


forces applied to these discs may cause them to shatter. - Always use undamaged disc flanges that are of correct size and shape for your selected disc. Proper disc flanges support the disc thus reducing the possibility of breakage. Flanges for cut-off discs may be different from grinding disc flanges.

Bottleneck Analysis | Process Improvement | Information ...

Process Improvement via Bottleneck Analysis. In Bottleneck Analysis we are seeking to understand imbalances within a process, which cause delays, inventory build-up's, process stoppages. Ideally, we want a smooth continuous, even process flow, however, in reality process input flows can at times exceed the throughput capability of a process.

Grinding and Polishing - ASM International

Grinding uses fixed abrasives—the abrasive particles are bonded to the paper or platen—for fast stock removal. Polishing uses free abrasives on a cloth; that is, the abrasive particles are suspended in a lubricant and can ... Head force (e.g., 200 N Struers machines) Platen frequency 200–300 rpm Head frequency 100–150 rpm

PPT – Grinder Use Safety Training PowerPoint presentation ...

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Industrial Hygiene Slide Presentation

Grinding/Cutting/etc. generates dusts. Silica is an example of a suspended dust particle. Spraying paints is an example of generating mists. Chemical storage units may contain any/all states of chemical hazards


introduction to micromachining, v.k.jain (editor) published by narosa publishers, n ew delhi (2009). (second edition) micromanufacturing processes by v. k. jain (editor), crc press. advanced machining processes by v.k jain, allied publishers, new delhi. non-conventional material removal processes by v.k.jain, block-4, indira gandhi national open university (ignou), new

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PowerPoint Presentation Author: praveen Last modified by: DR Created Date: 10/5/2004 4:22:44 AM Document presentation format: On-screen Show Company: IRICEN Other titles: Times New Roman Tahoma Default Design Slide 1 PRINCIPLE COMPONENTS OF MACHINE OPTION OF FBW AT FIXED DEPOT RAIL END CLEANING WELDING MACHINE CONT..

Anatomy of a Ceramet Grinding Wheel

Grinding Wheel. Updated: 29-Jul-2021. Advantages • Porous structure: Maximum abrasive exposure Less bond/workpiece interaction Excellent chip and coolant carrying capacity • Sharper / cooler / more efficient grinding • Reduced grinding forces • Higher stock removal rate capability • Less subsurface damage to workpieces

grinding forces presentations ppt 8316

grinding forces presentations ppt 8316 grinding forces presentations ppt electrical chemical grinding ppt free download BINQ Mining . electrical chemical grinding ppt free burr free surface No thermal damage Lack of tool forces machining ppt PPT Powerpoint Presentat

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P100 particulate respirator NIOSH Approval No. TC-84A-2561. Use for: Particles such as those from processing minerals, coal, iron ore, flour, and certain other substances. Liquid or oil based particles from sprays that do not also emit vapors Metal fumes produced from welding, brazing, cutting and other operations involving heating of metals.


THREAD GRINDING-Produce very accurate threads on hardened materials-Three basic methods are used. 1. Center type grinding with axis feed: (Work spins slower) similar to cutting thread in the lathe. difference a shaped grinding wheel is used instead of the point cutting tool. (even multiple shaped grinding wheel can be used ).


grinding wheel. These wheels have good grinding capacity at higher speed. These are used for precision grinding of cams, rolls and other objects where high precision of surface and dimension influence the performance of operation. A resinoid bond is denoted by the letter 'B'.


Effect of grinding velocity and rake angle of grit on grinding force. Figure 5 shows the role of rake angle on cutting force. A negative rake angle always leads to higher cutting force than what is produced with a cutting point having positive rake angle. The figure further illustrates that at …

Grinding operation - SlideShare

Types of grinding operation 1. Ruff or precision Grinding a) Snagging b) Off-hand 2. Precision Grinding a) Surface grinding b) Cylindrical grinding c) Center less grinding d) Form and profile grinding e) Plunge cut grinding 5. Grinding Process Grinding is an abrasive machining process that uses a grinding wheel as the cutting tool. 6.

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Can still be released by cutting, grinding, sanding. PPT-002-03. Non-friable asbestos is usually found bonded into other materials. The fibers are harder to break down into powder. These fibers, however, can still be released by cutting, grinding and sanding.

Market Analysis Template | Free PDF & PPT Download | Slidebean

Porter's Five Forces is a framework used to analyze the market competition. These include 1) the bargaining power of suppliers, 2) the bargaining power of buyers, 3) the competitive rivalry, 4) the threat of substitute products, and 5) the threat of new entrants.

Machining Processes

• Includes Cutting, Abrasive Processes (grinding), Advanced Machining Processes (electrical, chemical, thermal, hydrodynamic, lasers) • Automation began when lathes were introduced in 1700s • Now have computer numerical control (CNC) machines • Machining operations are a system consisting of:

TYPES OF GRINDING PROCESS - Mechanical engineering ...

In through feed grinding, workpiece will be feed axially by the axial force exerted on workpiece and this axial force will be applied by rotating surface of regulating wheel. Through feed grinding process is considered as quite productive as grinding process could …


Grinding Grinding is the most common form of abrasive machining. It is a material cutting process that engages an abrasive tool whose cutting elements are grains of abrasive material known as grit. These grits are characterized by sharp cutting points, high hot hardness, chemical stability and wear resistance.

Metallographic grinding and polishing insight |

Fine grinding produces a surface with little deformation that can easily be removed during polishing. Because of the drawbacks with grinding papers, alternative fine grinding composite surfaces are available, in order to improve and facilitate fine grinding, A high material removal rate is obtained by using grain sizes of 15, 9.0 and 6.0 µm.

Angle Grinder Hazard Awareness Training Presentation ...

The objective behind Angle Grinder Safety awareness PPT is to appropriately and essentially communicate the hazards related to angle grinders and the controls that should be in place for all workers who involved using this Angle Grinder. Grinding & Cutting Hazards Sparks. Proper PPE {glasses, full face shield, hearing protection);

PPT – GRINDING PowerPoint presentation | free to view - id ...

This grinding wheel is designed to handle tough right-angle grinding applications on metal, masonry, and other building materials. It can cut, grind, remove stock, chamfer edges, bevel, and blend with an aggressive cut-rate and long life. Here different variations of Type 27 Hub Depressed Grinding Wheel | PowerPoint PPT presentation | free to view

VRM Presentation | PDF | Mill (Grinding) | Mechanical Fan

the applied grinding pressure and the grind ability of the. material. The mill differential pressure or the mill motor power. consumption is an indication of how much material inside the. mill. Normally the feed rate is controlled by the mill motor. power consumption through an automatic loop. fVibrations. A …

Types of Forces - Science Games and Videos for Kids

Force gives an object the energy to move, stop moving, or change direction. It has both magnitude and a direction. Newton's first law states that an object's velocity cannot change unless it is acted upon by a force. The four fundamental forces in the universe are: gravitational force, electromagnetic force and strong and weak forces at the ...


– For single-point tools, chip breaker forces the chip to curl so that it fractures – Groove and obstruction types • Effect of Tool Material – Positive rake angle -> reduce cutting force, temp. and power consumption – HSS: +5°< rake angle<+20° – Carbides: -5°< rake angle <+10° – Ceramics: …

Grinding Machine: Definition, Types, Parts, Working ...

Working principle of Grinding Machine: The working principle of a grinding machine is quite easier to understand.. In a grinding machine, there is an electric motor which supplies the motion power to the grinding wheel with the help of a belt and pulley.. So when we start the electric motor the motor rotates at a certain rpm (150-15000 RPM, it may change according to the types of grinding ...

PowerPoint Presentation

Work, Energy, Power, Momentum Measures of Effort & Motion; Conservation Laws Work, defined Work carries a specific meaning in physics Simple form: work = force distance W = F · d Work can be done by you, as well as on you Are you the pusher or the pushee Work is a measure of expended energy Work makes you tired Machines make work easy (ramps, levers, etc.) Apply less force over larger ...

Porter's five forces template - Free PowerPoint Template

Michael Porter is a famous academic known for his theories on economics, business strategy, and competitive advantages. The great works has influenced the whole world, including Porter's Five Forces Analysis, Competitive Strategy, National Diamond and Value Chain.The Porter's five forces Template in PowerPoint format include three slides.Firstly we have Porter five forces template.


Grinding Wheel Specification •Standard grinding wheel marking system used to designate abrasive type, grit size, grade, structure, and bond material Example: A-46-H-6-V •Also provides for additional identifications for use by grinding wheel manufacturers

Tool Grinding Ppt

Grinding – Ex. 1-1 • You are grinding a steel, which has a specific grinding energy (u) of 35 W-s/mm3. • The grinding wheel rotates at 3600 rpm, has a diameter (D) of 150 mm, thickness (b) of 25 mm, and (c) 5 grains per mm2. The motor has a power of 2 kW. • The work piece moves (v) at 1.5 m/min. The chip thickness ratio (r) is 10. Read More