...Measurement of Screw Thread Abdullah-Al-Mamun Lecturer, Dept. of IPE Outline • • • • Common terms Pitch Errors Errors in Measurement Effective Dia Measurement 1 5/11/2011 Screw Thread • A SCREW THREAD is a ridge of uniform section in the form of a helix on the external or internal surface of a cylinder. • the PITCH of a thread P is the distance from a point on the thread form to the corresponding point on the next form, measured parallel to the axis Elements of a Vee-form Thread A vee-from thread is composed basically of the following elements. – Major or outside diameter – Minor or root diameter – Form, particularly flank angles – Pitch – Simple effective diameter 2 5/11/2011 Screw Thread Screw Thread 3 5/11/2011 Lead & Pitch LEAD = 1P LEAD = 2P LEAD = 3P 4 5/11/2011 Errors in Measurement There are at least five important elements which require consideration: • Major diameter • Minor diameter • Effective diameter • Pitch and angle of the thread form • Errors on the major and minor diameters will cause interference with the mating thread • Errors on the effective diameter will also result in weakening of the assembly • pitch and angle errors are also not desirable as they cause a progressive tightening and interference on assembly Errors in Measurement • Drunken Thread: Thread drunkenness is a particular case of a periodic pitch error recurring at intervals of one pitch 5 5/11/2011 Pitch Errors in Screw Threads • Progressive...
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...SURFACE CASING DESIGN OF AN OIL WELL By MANISH PANT (R270307017) SANDEEP BAHUGUNA (R270307032) College of Engineering studies University of Petroleum & Energy Studies Dehradun May, 2011 Surface casing design of an oil well A thesis submitted in partial fulfilment of the requirements for the degree of Bachelor of Technology (Applied Petroleum Engineering, upstream) Under the Guidance of ……………… Mr. Arun Chandel (Mentor) Approved …………..... Dean College of Engineering University of Petroleum & Energy Studies Dehradun May, 2011 CERTIFICATE This is to certify that Manish pant and Sandeep Bahuguna, students of B.Tech (APE)+ MBA(UAM) has written their thesis on “surface casing design for an oil Well” under my supervision and have successfully completed the project within stipulated time. They have demonstrated high performance levels and dedication during the completion of their thesis. …………… Mr. Arun Chandel (Mentor) Acknowledgement We would like to express our deepest gratitude to Dr. Shri Hari, Dean, COES, UPES for allowing us to perform the project work. We have received maximum co-operation and help from UPES faculty members. We would also like to express our sincere thanks to Mr. Sabyasachi Maiti, Course Coordinator, B.Tech (APE Upstream+ MBA (UAM)), for giving his full support during our project work. Lastly, we would like to thank our mentor, Mr. Arun Chandel...
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...Things to consider when 'Handing Over' machining operations to another operator. Scenario: You have been operating a Lathe during your shift at work and your working day is coming to an end, another operator is to continue working the next shift on the same machine when you leave for the day, what you need to discuss with the next shift operator before leaving to ensure he can operate safely and effectively. The new operator will need to know.. * What job he is to continue with * What drawing is he working from * How many parts are to be made * What tolerance will he be working towards * Where is the stock material * What type of material is being used * Does he check individual parts or are the parts 'Batch checked' * When complete do the parts need to go to the inspection department or to another department * What measuring tools are being used * Have the measuring tools been calibrated * When are the measuring tools due for re-calibration * When are the lathe cutting tools in need of checking * If coolant needs to be used * What safety factors need to be considered * Is the machine operating as it should or is the anything they should know * Sign off a 'Hand over' check list as part of company procedure What the implications could be if you was not to undertake these procedures * Wasting valuable working time due to not know what job to do * Would not know how many parts to produce which could be...
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...a neck of diameter 3.5 cm. The mouth of the can has an external thread of 0.3 cm where the cap screws onto. The canister is also ribbed at the three quarter mark up the cylindrical section. Handle The handle is u-shaped flat aluminum bar of width 1cm. It is 8.5 cm long. The sides of the bar are bent towards the canister with the side farthest from the canister overlapping with the one closest and bent vertically up to hold the trigger. The vertical portion has a rectangular slit of 0.1cm by 0.6cm through which the trigger passes to attach to the plunger mechanism. Trigger This is a 1cm by 0.5cm aluminum bar that passes through the vertical projection of the handle and attaches to the plunger mechanism. Plunger The plunger is12.3cm long, cylindrical and hollow. It is open at both ends with a steel ball resting at the bottom part. The bottom brim of the plunger is slightly curved inwards to hold the steel ball. The plunger attaches to the nozzle and tube assembly via a hole bored through the cap of the canister. Plunger spring This is a helical spring that the plunger is fitted through. It is 4.5 cm long from the top of the plunger. It rests between the cap of the plunger and a tightly fitted flat ring that is fixed at the mid section of the plunger. Steel ball The steel ball is 0.5cm in diameter. It rests at the bottom of the plunger bore. Plunger motion control screw This screw is attached to the mid section of the plunger through a hole in...
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...HD10AMA Pull all parts necessary to case the units: 1) Top case – 100292-00 2) Bottom case – 101003-00 3) Screws – 100499-00 4) Compliance Label – 103305-00 5) Front Label – 101926-00 6) BNC hex nuts and Lock washers (No part number) Step 1) Check the unit to confirm the proper placement of the end bracket. The end connector is “D” shaped. The hole in the bracket that the connector passes through is also “D” shaped. It is possible for the bracket to be upside down but still allow the connector through. Make sure it has the correct orientation. Step 2) Case the unit: a) Add the top and bottom cases to the unit. b) Add 8 screws to the sides using the preset corded drill to secure the cases. c) Add and/or tighten all BNC nuts (using torque #9), jack screws (using torque #3) and the power nut (using torque #6). Step 3) Place the front label on the unit. Make sure the label is centered and straight on the unit and in the correct orientation; power lined up with power. Make sure it is not hanging over any edge. Step 4) Add the compliance label and serial number labels to the unit. Make sure the compliance label is straight in comparison to the hole for the switches. It should be parallel on both edges. There should be a small gap between the hole and the label (a sidewalk) to protect the label when the switches are flipped by customers. The serial number should be 3.7 centimeters from each edge. There should be a small space of .2 to .3 centimeters...
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...it cool Mod 2 – Screw it Mod 3 – “Baker, baker” Start it up 4 5 6-7 8-23 24-25 26-29 30-34 35-43 41 3 3 Introduction Dear Xbox 360 Ring of Death Victim, You are reading this E-book because you want to fix your Xbox 360 and eliminate the 3 Red Lights problem without having to send it out for repairs. You also do not want to spend $140.00 and have to wait weeks to get back to your Xbox 360. This picture guide and videos have been created to show you in full detail how to fix your own Xbox 360 within the next hour. The reason your Xbox 360 has the 3 Red Lights problem is because you have encountered a hardware problem that is linked to overheating and the solder is not holding up. We have tested and found methods that work. This fix does involve taking your Xbox360 apart and requires tools and hardware to fix the 3 Red Lights. Our fully detailed guide will make disassembling and assembling your Xbox 360 very easy. Good Luck! James Dean 4 4 Tips Follow each and every step as directed in the detailed guide. Have all tools and hardware ready before beginning. Make sure your work area is not on carpet; static is your worst enemy when handling internal pieces in your Xbox 360. All hardware required is available at your local hardware store like Home Depot, Lowes or Ace hardware. Warning: Disassembling your 5Xbox 360 will void your warranty 5 if it is not already voided! Hardware & Tools Quantity 8 Hardware Description Machine Screws 5x10mm (5mm) ...
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...straight threading and make sure the tap thread is not damaged. Why is it important to use the correct drill size before using the tap? When using a tap to cut a thread it is important to drill the correct size hole for the particular thread that is being cut, because If the hole is drilled too large then there will be insufficient thread so that a bolt or pipe would pull out of the thread. If the hole is too small then the tap will break. How are these tools tool stored in the workshop, give reasons for this storage method? The tap wrench are in their holder and are stored in the cupboard so they are easily found, when we want to work on them. The tapes are stored in their case and stored in the cupboard so they are easily accessed and are protected from damages made by other materials What are the hazards associated with this tool and how can I use this tool safely. Taps are made of hardened steel, which provides long life and a sharp cutting surface; however, this also makes them brittle. Taps are expensive and the work piece may be priceless. Always use lubrication and great care when performing tapping operations. For load-bearing threads, always verify that the threads, fasteners, and materials are adequate for the job. The tap should be perpendicular to the work piece. Give details of how to use these tools correctly? To use a tap, choose the size that is appropriate for the size of the bolt or the hole you want to thread. Place the...
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...“Agnes” Production Technology Project Value Chain Management - VIA University Århus Esben Skovsgaard Simonsen - 208153 Jonas Søgaard Petersen - 208125 Dovile Putnaite - 208134 Sara Poulsen - 208132 Anders Byriel-Thygesen - 208026 Table of contents Introduction ..............................................................................................................................................................3 Production Structure Tree ........................................................................................................................................4 BOM ..........................................................................................................................................................................5 Part Description ........................................................................................................................................................6 Head piece ............................................................................................................................................................6 Middle piece .........................................................................................................................................................7 Bottom piece ........................................................................................................................................................8 Drawings ....................................................
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...S_ kL_ _ i ] _!iii_ i_iiii_ _:_!_ _ _i!_ i!i_:_ii_ _:_'::_s:_'_i SECTgOHAL OORS D ONE PIECEDOORS Before You Start.,. identify your door •follow specific index for assemblyand installation Sectional D DOt With Curved Track UX gx One Piece Door. Jamb Hardware_ Horizontal Track° One Piece Door, No Track. Jamb Hardware,, One Piece Door. No Track, Pivot Hardware, .f /il DOOR ,,/_, ,, / // // DOOR \ \ TRACK \ \ / ! TRACK // DOOR 9 iNSTRUCTiON Assembly installation ......... ...... INDEX Pg_ 6 Pg, 8 // // JAMB HARDWARE PIVOT iNSTRUCTION Assembly installation INDEX ......... ....... pg. 6 INSTRUCTION Assembly Installation ........... iNDEX pg, 6 INSTRUCTION Assembly Installation INDEX P_ 6 .............. ............ Pg., 14 .......... Pg. 14 Pg 14 COMMON INDEX : Warranty ............ Maintenance ......... 2 3 Safety Rules Radio Controls ........... ........ 3 17 Wiring Diagram ....... Parts Lists ............. 20 21 CartonCheck List-SEARS Has packaged your Garage Door Opener in 2 cartons with handles,,_ THE LARGE CARTON 1 Box of Radio Controls 1 1 1 1 Operator assembly (in foam end caps) Plastic light lens Box of rail assembly hardware Owners manual CONTAINS: I 1 1 1 1 Box of chain Curved door arm _,_ ' Straight door arm Bag of installation hardware Handy hints labeF "_J_!Ji_i!#_ THE SMALL CARTON CONTAINS: I Three-section Tee rai! 2 Sections of hanging...
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...of view, using employee education can improve the efficiency of business by fully understanding complex work, by revising previous business knowledge to match current job, and by keeping up with current trend and saving amount of time. By using employee education in international business, it can help me to have fully understanding of my job. Most international businesses are not only selling products to other countries but also providing good service to them. When I was a business administer, I have taken a great advantage of using my company’s employee education. This is because my previous company is making hardware, such as screw, bolt, and nut. There are many different sizes of this hardware. For example, screws have many different size, length, head, thread, and drive style. Each small part can be combined to many different screws. If I did not have employee education and training, I would not understand the duty of my job. I also will not response...
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...A screw, or fastener, is a sort of latch, ordinarily made of metal, and described by a helical edge, known as a male string (outer string) or simply string, wrapped around a barrel. Some screw strings are intended to mate with a correlative string, known as a female string (inner string), frequently as a nut or an item that has the inside string framed into it. Other screw strings are intended to cut a helical furrow in a milder material as the screw is embedded. The most widely recognized employments of screws are to hold questions together and to position objects. Screw is a framework that progressions over rotational development to direct development, and a torque (rotational force) to a straight compel. It is one of the six conventional essential machines. The most generally perceived structure involves a tube formed shaft with helical wrinkles or edges called strings around the outside. The sink goes through a hole a substitute thing or medium, with strings inside of the crevice that work with the screw's strings. Exactly when the post of the sink is rotated appreciation to the stationary strings, the screw moves along its center concerning the medium incorporating it; for occasion transforming a wood screw powers it into wood. In screw frameworks, either the screw shaft can turn through a hung hole in a stationary thing, or a hung neck area, for instance, a nut can rotate around a stationary screw shaft. Geometrically, a screw could be seen as a tight inclined plane wrapped...
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...Bolts: Bolted joints are one of the most common elements in construction and machine design. They consist of cap screws or studs that capture and join other parts, and are secured with the mating of screw threads. Screws: Threaded fasteners either have a tapered shank or a non-tapered shank. Fasteners with tapered shanks are designed to either be driven into a substrate directly or into a pilot hole in a substrate. Mating threads are formed in the substrate as these fasteners are driven in. Fasteners with a non-tapered shank are designed to mate with a nut or to be driven into a tapped hole. Nut: A nut is a type of hardware fastener with a threaded hole. Nuts are almost always used opposite a mating bolt to fasten a stack of parts together. Washer: A washer is a thin plate (typically disk-shaped) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener. Other uses are as a spacer, spring, wear pad, preload indicating device, and locking device. Pin: A pin is a device used for fastening objects or material together. It is usually made of steel, or on occasion copper or brass. It is formed by drawing out a thin wire, sharpening the tip, and adding a head. Nail: In engineering, woodworking and construction, a nail is a pin-shaped, sharp object of hard metal or alloy, formerly wrought iron, though today a modern alloy of steel is common, used as a strong fastener. Threaded rod: Linkage offers rod for any occasion. Available in...
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...Screws 1 1 SCREWS Threaded fasteners as screws, nuts and bolts are important components of mechanical structures, and machines. Screws may be used as removable fasteners or as devices for moving loads. 1.1 Screw thread The basic arrangement of a helical thread wound around a cylinder is illustrated in Fig 1.1. The terminology of an external screw threads is, Fig. 1.1: • pitch denoted by p is the distance, parallel to the screw axis, between corresponding points on adjacent thread forms having uniform spacing; • major diameter denoted by d is the largest (outside) diameter of a screw thread. • minor diameter denoted by dr or d1 , is the smallest diameter of a screw thread. • pitch diameter denoted by dm or d2 is the imaginary diameter for which the width of the threads and the grooves are equal. Screws 2 The standard geometry of a basic profile of an external threads is shown in Fig. 1.2, and it is basically the same for both Unified (inch series) and ISO (International Standards Organization, metric) threads. The lead denoted by l is the distance the nut moves parallel to the screw axis when the nut is given one turn. A screw with two or more threads cut beside each other is called multiple-threaded screw. The lead is equal to twice the pitch for a double-threaded screw, and to 3 times the pitch for a triple-threaded screw. The pitch p, lead l, and lead angle λ are represented in Fig. 1.3. Figure 1.3(a) shows a single thread right hand screw and Fig...
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...work environment 2) Familiarize yourself with safety symbols 3) Know where to get help 4) Plan ahead 5) Inspect all tools 6) Don’t rush your work 7) Follow standard safety procedures 8) Read the manufacture and instruction hamlet • Wrenches Not designed for hammering Always match the correct wrench size Pull wrench toward you • Exercise extreme care when working with electric sockets DO NOT use duck tape Always wear gloves • NEVER use pliers for hammers • If you change a pair of pliers, dispose of the old one because pliers aren’t easily replaced • Screwdriver Most abused and mistreated tool Designed to drive and withdraw screws Common mistake: mismatch them with the job at hand Always check to see if the tip is rusted or rounded Make a hole before driving in a screw When the screw is almost in you can use both hands to apply pressure DO NOT use a screwdriver near a live wire or electric NEVER expose a screwdriver blade to excessive heat • Hammer Take special care to check for any chipping NEVER use the hammer cheek for striking Always check for new hazards as they’re...
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...How to improve maize milling machine efficiency? This is a general question. Maize milling machine efficiency can be affected by maize milling machine operation, its technology level, the raw grain and so on. With social development, people lay more and more emphasis on food nutrition. Maize nutrition also causes our attention. Meanwhile, maize milling machine usage is more and more widely and the market has increasing demands for maize milling machine. We should abide by the operation rules to ensure the normal running. 1. When the maize flour yield is abnormal, we can draw out the screw shaft, check the cage bar and screw shaft abrasion. Change the wearing parts in time. Each lubrication part should prevent dust and other impurities. Each year, we should check the engine oil quality of the reduction gearbox once. If there has any degenerative oil, we should change all of the engine oil. 2. No quality, no production value. No quality, no market. No quality, no profits. No quality, no life. Therefore, we should try our best to improve quality, yield, safety, and reduce energy consumption. 3. To make MAIZE MILLING MACHINE usage more effective, we should operate maize milling machine according to the equipment operating instruction. Keep regular maintenance on the equipment. Avoid any error in production caused by incorrect operation. It’s better to have the professional maize milling machine engineers on scene to guide for you how to detect and maintain if you...
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