http://entagalex.blogspot.com/REACH SUCCESSennoreply@blogger.com (Eng.Amr)Tue, 04 Oct 2011 14:21:53 PDTBlogger http://www.blogger.com38125noreply@blogger.comnoREACH SUCCESShttp://entagalex.blogspot.com/2011/02/welding.htmlWelding joinnoreply@blogger.com (Eng.Amr)Thu, 17 Feb 2011 08:05:42 PSTtag:blogger.com,1999:blog-6868635257682934126.post-1399191230699932907Welding  is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material (the weld pool) that cools to become a strong joint, with pressure sometimes used in conjunction with heat, or by itself, to produce the weld. This is in contrast 2011-02-17T18:05:42.297+02:000http://entagalex.blogspot.com/2011/02/what-production-engineering.htmlProduction engineering tool design metrologynoreply@blogger.com (Eng.Amr)Tue, 15 Feb 2011 23:39:49 PSTtag:blogger.com,1999:blog-6868635257682934126.post-996367298938922546 Production engineering is a combination of manufacturing technology with management science. A production engineer typically has a wide knowledge of engineering practices and is aware of the management challenges related to production. The goal is to accomplish the production in the smoothest, most-judicious and most-economical way. Production engineering encompasses castings, joining processes2011-02-16T09:39:49.071+02:000http://entagalex.blogspot.com/2011/01/changing-face-of-part-inspection.htmlinspection 3D CAD measuring devices designnoreply@blogger.com (Eng.Amr)Thu, 06 Jan 2011 22:47:02 PSTtag:blogger.com,1999:blog-6868635257682934126.post-2930992170875151576 October 21, 2010 * Authored by: Ron Branch, Verisurf Application Engineer, Verisurf Software Inc., Anaheim, Calif. Resources: Verisurf Software Inc., verisurf.com * Inspection software helps 3D CAD, 3D GD&T, and measuring devices work together to ensure design intent. A necessary component of the model-based definition (MBD) approach to product design is 3D geometric dimensioning and 2011-01-07T08:47:02.628+02:000http://entagalex.blogspot.com/2011/01/measure-difficult-parts.htmlTerminology of measurement Measuring accuracynoreply@blogger.com (Eng.Amr)Thu, 06 Jan 2011 22:29:59 PSTtag:blogger.com,1999:blog-6868635257682934126.post-5268867636565351324  Making it easy to measure difficult parts An engineer might design the components, but someone on the production floor eventually has to measure them precisely. Printer-friendly version And until now, few handheld tools could accurately measure distances to theoretical sharp corners, apexes, mold lines, and intersection points. CornerCalipers from SPS Industries, Farmington, Conn., (2011-01-07T08:29:59.766+02:000http://entagalex.blogspot.com/2011/01/do-inventors-need-product-engineer.htmldesign develop product engineernoreply@blogger.com (Eng.Amr)Sun, 02 Jan 2011 16:59:40 PSTtag:blogger.com,1999:blog-6868635257682934126.post-5814157508093392834By Fred Heys A product engineer is a person that can design, develop, and manage new product ideas for corporations or individual inventors. Being an engineer is not always required, but the person must be familiar with all phases of the Product Development Cycle, and keep up with the latest technologies. Also, the designer has to combine technical knowledge, human factors, and creativity in 2011-01-03T02:59:40.571+02:000http://entagalex.blogspot.com/2011/01/what-is-production-engineering.htmlProduction industrial manufacturing Engineeringnoreply@blogger.com (Eng.Amr)Fri, 31 Dec 2010 17:26:42 PSTtag:blogger.com,1999:blog-6868635257682934126.post-2056892964402034589A branch of engineering that involves the design, control, and continuous improvement of integrated systems in order to provide customers with high-quality goods and services in a timely, cost-effective manner. It is an interdisciplinary area requiring the collaboration of individuals trained in industrial engineering, manufacturing engineering, product design, marketing, finance, and 2011-01-01T03:26:42.592+02:000http://entagalex.blogspot.com/2010/02/what-is-six-sigma.htmlSix Sigmanoreply@blogger.com (Eng.Amr)Fri, 19 Feb 2010 21:52:21 PSTtag:blogger.com,1999:blog-6868635257682934126.post-1146967645547101364Six Sigma at many organizations simply means a measure of quality that strives for near perfection. Six Sigma is a disciplined, data-driven approach and methodology for eliminating defects (driving towards six standard deviations between the mean and the nearest specification limit) in any process -- from manufacturing to transactional and from product to service. The statistical representation 2010-02-20T07:52:21.128+02:000http://entagalex.blogspot.com/2010/02/new-gen3sys-version-of-drill-product.htmlAMEC Product Selectornoreply@blogger.com (Eng.Amr)Fri, 19 Feb 2010 21:23:13 PSTtag:blogger.com,1999:blog-6868635257682934126.post-5253690778012071644New GEN3SYS® version of the Drill Product Selector is now available This fully updated version of the AMEC Product Selector has been expanded to include details on all our new products and now includes Original T-A®, GEN2 T-A® and GEN3SYS®, making it an innovative and indispensable tool for all AMEC users. Available on free download in a choice of 10 languages, the new product selector contains2010-02-20T07:23:13.955+02:000http://entagalex.blogspot.com/2009/12/definitions.htmlDefinitionsnoreply@blogger.com (Eng.Amr)Wed, 02 Dec 2009 09:25:46 PSTtag:blogger.com,1999:blog-6868635257682934126.post-8734312412505605118manufacturing, machine shop definitions 2009-12-02T19:25:46.154+02:000http://entagalex.blogspot.com/2009/12/rc5-shafts-rotating-over-600-rpm-with.htmlInterference Fits Transitional Fitsnoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 18:11:22 PSTtag:blogger.com,1999:blog-6868635257682934126.post-7325456089710657764 Clearance FitsA clearance fit always has a gap between the two mating parts.The diagram below shows a clearance fit between a shaft and a hole Transitional Fits <!-- google_ad_client = "pub-7811625048501122"; /* 728x90, created 10/8/09 */ google_ad_slot = "9594579161"; google_ad_width = 728; google_ad_height = 90; //--> google_protectAndRun("ads_core.google_render_ad"2009-12-02T04:11:22.912+02:000http://entagalex.blogspot.com/2009/12/practice-problems.htmlPRACTICE PROBLEMSnoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 17:48:02 PSTtag:blogger.com,1999:blog-6868635257682934126.post-74782972368618614871. What are measurement standards?ans. Standards are objects of known size, quantity, roughness, etc. These standards are used to calibrate and verify measuring instruments. As a result, measured values are more accurate.2. What effect will temperature variation have on precision measurements?ans. Temperature control during measurement is important because as materials are heated they expand. 2009-12-02T03:48:02.767+02:000http://entagalex.blogspot.com/2009/12/defination-of-metrology.htmlDefination of Metrology Tolerance Precision Repeatabilitynoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 17:39:41 PSTtag:blogger.com,1999:blog-6868635257682934126.post-7977893761244674433Accuracy - The expected ability for a system to discriminate between two settings. Assembly - the connection of two or more separate parts to make a new single part. Basic Dimension - The target dimension for a part. This typically has an associated tolerance. Dimension - A size of a feature, either measured, or specified. Dimensional Metrology - The 2009-12-02T03:39:41.504+02:000http://entagalex.blogspot.com/2009/12/mechanism-of-cutting.htmlTHE MECHANISM OF CUTTINGnoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 17:29:22 PSTtag:blogger.com,1999:blog-6868635257682934126.post-5552265498634232700Assuming that the cutting action is continuous we can develop a continuous model of cutting conditions. Orthogonal Cutting - assumes that the cutting edge of the tool is set in a position that is perpendicular to the direction of relative work or tool motion. This allows us to deal with forces that act only in one plane. We can obtain orthogonal cutting by turning a thin walled tube, 2009-12-02T03:29:22.057+02:000http://entagalex.blogspot.com/2009/12/chip-formation.htmlCHIP FORMATIONnoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 17:08:47 PSTtag:blogger.com,1999:blog-6868635257682934126.post-1281796504911729941There are three types of chips that are commonly produced in cutting, - discontinuous chips - continuous chips - continuous with built up edge A discontinuous chip comes off as small chunks or particles. When we get this chip it may indicate, - brittle work material - small rake angles - coarse feeds and low speeds A continuous chip looks like a long ribbon 2009-12-02T03:08:47.124+02:000http://entagalex.blogspot.com/2009/12/economics-of-metal-cutting.htmlThe Economics of Metal Cuttingnoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 17:04:52 PSTtag:blogger.com,1999:blog-6868635257682934126.post-5380505557542671141As with most engineering problems we want to get the highest return, with the minimum investment. In this case we want to minimize costs, while increasing cutting speeds. EFFICIENCY will be the key term - it suggests that good quality parts are produced at reasonable cost. Cost is a primarily affected by, - tool life - power consumed The production 2009-12-02T03:04:52.047+02:000http://entagalex.blogspot.com/2009/12/tool-life.htmlTOOL LIFEnoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 16:48:42 PSTtag:blogger.com,1999:blog-6868635257682934126.post-8860697859199655136Tool life is the time a tool can be reliably be used for cutting before it must be discarded/repaired. Some tools, such as lathe bits are regularly reground after use. A tool life equation was developed by Taylor, and is outlined below, An important relationship to be considered is the relationshipbetween cutting speed and tool life,Although the previous equation is 2009-12-02T02:48:42.491+02:000http://entagalex.blogspot.com/2009/12/causes-of-tool-wear.htmlCauses of tool wearnoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 16:21:42 PSTtag:blogger.com,1999:blog-6868635257682934126.post-1407366262412052857Hard particle wear (abrasive wear)Adhesive wearDiffusion wearChemical wearFracture weara) Hard particle wear (abrasive wear)Abrasive wear is mainly caused by the impurities within the workpiece material, such as carbon, nitride and oxide compounds, as well as the built-up fragments. This is a mechanical wear, and it is the main cause of the tool wear at low cutting speeds.b) Adhesive wear 2009-12-02T02:21:42.455+02:000http://entagalex.blogspot.com/2009/12/tool-wear.htmlTool wearnoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 16:14:46 PSTtag:blogger.com,1999:blog-6868635257682934126.post-3021469660512297955Tool wear describes the gradual failure of cutting tools due to regular operation. It is a term often associated with tipped tools, tool bits, or drill bits that are used with machine tools. Tool wear phenomena Types of wear include: * flank wear in which the portion of the tool in contact with the finished part erodes. Can be described using the Tool Life Expectancy equation. * crater wear in2009-12-02T02:14:46.455+02:000http://entagalex.blogspot.com/2009/12/industrial-engineering.htmlIndustrial engineering Historynoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 15:48:01 PSTtag:blogger.com,1999:blog-6868635257682934126.post-6128264135309686442Industrial engineering is a branch of engineering that concerns with the development, improvement, implementation and evaluation of integrated systems of people, money, knowledge, information, equipment, energy, material and process. It also deals with designing new prototypes to help save money and make the prototype better. Industrial engineering draws upon the principles and methods of 2009-12-02T01:48:01.247+02:000http://entagalex.blogspot.com/2009/11/safe-use-of-machine-tools.htmlThe safe use of machine toolsnoreply@blogger.com (Eng.Amr)Thu, 26 Nov 2009 18:11:33 PSTtag:blogger.com,1999:blog-6868635257682934126.post-4080554145661004725Personal safety• Do not use a machine unless you have received instruction in itsoperation.• Do not use a machine without the permission of your instructor orsupervisor.• Do not lift heavy workpieces or workholding devices onto a machinewithout assistance or without using the mechanical lifting equipmentsupplied.• Do not lean on a machine whilst it is working.• Do not wear rings on your fingers 2009-11-27T04:11:33.541+02:000http://entagalex.blogspot.com/2009/11/terminology-of-measurement.htmlTerminology of measurement Measuring accuracynoreply@blogger.com (Eng.Amr)Thu, 26 Nov 2009 18:03:06 PSTtag:blogger.com,1999:blog-6868635257682934126.post-2014317264047273239Indicated sizeThis is the size indicated by the scales of a measuring instrument whenit is being used to measure a workpiece. The indicated size makes noallowance for any incorrect use of the instrument, such as the applicationof excessive contact pressure.ReadingThis is the size as read off the instrument scales by the operator. Errorscan occur if the scales are misread, for example sighting (2009-11-27T04:03:06.694+02:000http://entagalex.blogspot.com/2009/10/micrometer.htmlmicrometer anvil face spindlenoreply@blogger.com (Eng.Amr)Tue, 01 Dec 2009 15:26:46 PSTtag:blogger.com,1999:blog-6868635257682934126.post-6790464593744372803The micrometer is a precision measuring instrument, used by engineers. Each revolution of the rachet moves the spindle face 0.5mm towards the anvil face. The object to be measured is placed between the anvil face and the spindle face. The rachet is turned clockwise until the object is ‘trapped’ between these two surfaces and the rachet makes a ‘clicking’ noise. This means that the rachet cannot 2009-12-02T01:26:46.819+02:000http://entagalex.blogspot.com/2009/10/vernier-calipier.htmlVernier Caliper measure reading errornoreply@blogger.com (Eng.Amr)Fri, 31 Dec 2010 17:36:13 PSTtag:blogger.com,1999:blog-6868635257682934126.post-3011780702720896562The Vernier Caliper is a precision instrument that can be used to measure internal and external distances extremely accurately. The example shown below is a manual caliper. Measurements are interpreted from the scale by the user. This is more difficult than using a digital vernier caliper which has an LCD digital display on which the reading appears. The manual version has both an imperial and 2011-01-01T03:36:13.085+02:001http://entagalex.blogspot.com/2009/10/theory-of-metal-cutting.htmlTheory of Metal Cuttingnoreply@blogger.com (Eng.Amr)Sun, 25 Oct 2009 15:35:12 PDTtag:blogger.com,1999:blog-6868635257682934126.post-6613493188170425712Theory of Metal Cuttingpresentation of how metal is cut and chips etc are formed given by mr jotjeet ghosh bit WAU_classic('jmzu82azv3mu')2009-10-26T00:35:12.465+02:000http://entagalex.blogspot.com/2009/10/describes-common-machines-used-in-metal.htmlbackstroke axis broaching machinenoreply@blogger.com (Eng.Amr)Sun, 25 Oct 2009 15:40:59 PDTtag:blogger.com,1999:blog-6868635257682934126.post-8367461188106502976arbor The bar attached to the spindle in a horizontal milling machine. The arbor holds the milling cutter. automatic bar machine A turning machine that continuously cuts a number of parts from a piece of bar stock, one after another. The bar stock advances through the spindle 2009-10-26T00:40:59.502+02:000nonadult