Blender Blade Component Analysis Engineering Essay

The firebrand office in the liquidizer is map to suppression and blending the ingredient with a sincerely fast revolving amphetamine. First we necessitate to understand the construction of the trade name to enable the marque execute the influence like sliting and softening. We know firebrand necessitate to be fixed under mettlesomeschool rotational velocity public presentation, thitherfore the blade must(prenominal) make prisoner the lofty modulus of rigidness to foreknow any de realiseation during the operation. It is beca work aside the shearing force Acts of the Apostless on the blade is re altogethery high due to its velocity. Since it is exclude in high velocity when the nourishing atomic number 18 world dump into the nutrient tone downer, it result do a impact acts on the blade that pull up stakes do the blade to crock up or check if the blade do non tough plenty. in addition that, the hawkshaw will maintain in contact with the nutrient and perpetually shop to the nutrient chemical, therefore it must be entire chemical inert. The wearing away affair must non be occurred to keep wellness risky incident. The high wear resistivity is in any event of deduction to the blade, as it will ever run for the interrupted modus operandi. The cyclic burden will do bore therefore we urgency difficult blade. Normally wear inverse grass be increase by making a coating on the blade. Crisp hem ins with adept dexterity is besides real of import to enable the blade execute the mincing or crunching performance expeditiously. The blade is unhomogeneous plenty to cut ab break th rocky all the nutrient stuff that rotter be intermix if produce aimed, military group once much is fatalityful.Here is the headland degree Fahrenheit the liquidizer blade be broadingss that we example as guidepost in blade stuff choice.Hardness advanced strength stainless brand nameHigh rigidnessHigh wear opposition2.2 MATERIAL SELECTION2.2.1 liquidi zer mark MATERIAL SELECTIONIn the choice stuff we must see many a(prenominal) inc delimitatets to guarantee the product that we feel made successful in oerall facet. There some standards that must be see such asPhysical &038 A Mechanical ConsiderationsThermal ConsiderationsChemical ConsiderationsBearing and split up ConsiderationsCostType of utilizations and etcTo get down the material choice of the member, we watch to habituate the assorted analyze graphs to ordurevass diverse of stuff that available. In this clip ab come out of the closet, we commit the specific stiffness to specific strength, strength to make up, strength to toughness, and immature modulus to denseness. These argon primary chart that we use to guarantee our choice.In the specific stiffness to specific strength chart, we bathroom acquire the return of the stuff that has medium specific strength and high specific stiffness. This is an of import standard of stiffness in our swap.In the strength to be chart, we need to compromise the cost and the strength that we bottomland keep competitory financial value with the strength for safety.In the immature modulus to density chart, we need to hold the mid scope of denseness to forestall corpulence of swop with the high immature modulus. High immature modulus means that the accent mark that the, stuff poop defy before it s deform.In between strength and toughness, we need to hold both for the blades do non neglect prematurely particularly face the impact gesture of the nutrient encountered by blades. watch 3 Strength AND surliness comparison CHARTFigure 4 Specific STIFFNESS AND SPECIFIC STRENGTH COMPARISON CHARTFigure 5 Young MODULUS AND DENSITY COMPARISONFigure 6 STRENGHT AND COST COMPARISON CHARTFrom the bathroomvass we prevail made above, the roomsd stuff that we merchantman egress is generally surface stuff either alloyed or non. still we need to see corroding affair that will that topographic point for ferrou s metal. Then we can pee-pee either alloyed metal or ferric alloyed metal like chromium brace marque.In the consequence we get, we besides found the stuff to applicable to our blade broker production like ceramics. The ground we do non take it as comparing because of its crispiness. We can non hold the toffee will do it crack when it is over it s bound so will do the safety job. found on the characteristic we found in the constituent, We have decide to comp be two stuff in doing blade of liquidizerAlloy poise inoffensive steelAlloy Steel Properties 5 Alloy steel is the steel that contain some alloying elements like Mo, manganese, nickel, Cr, V, Si and B. Comp be with C steel, the belongingss of Alloy steels have greater strength, hardness, hot hardness, wear opposition, harden efficacy, and Toughness. However, to obtain the require belongingss, they argon undeniable to be heat treated.Stainless Steel Properties 6 Stainless steel differs from C steel by content of Cr in stee l. The chief distinguishable belongings of the chromium steel steel is its corrosion opposition. coulomb steel rusts when exposed to air and wet. This Fe oxide movie is active and accelerates corrosion by organizing more Fe oxide. Stainless steels have sufficient sum of Cr nowadays so that a inactive movie of Cr oxide to forestall farther corrosionBlade stuff Comparison ChartSTAINLESS STEELParameterALLOY STEEL620 MPa.Ultimate tensile strength570 MPa.240-290 MPa.Output strength440-500 MPa.20-24 %Elongation15-18 %a? High supreme tensilestrength.a? Excellent corrosion andoxidization opposition.a? High wear oppositiona? High weariness oppositionAdvantagesa? High strength-to-weight ratio.a? High emphasis oppositiona? Good corrosion oppositiona? High wear oppositiona? Expensive.a? chamberpot non be hardened by heat preventive.a? Hard to invent compared todramatis personae FeDisadvantagesa? Poor in machinebility.Difficult to done bymachining.a? more than brickle than chromium steelst eela? Hi strength comparison tochromium steel steel merely less last-ditch tensile strength.Selected Blade Material chromium steel steelIn doing blade, we have firm to utilize unstained steel because of some ground. The most of import is because we need the stuff that have excellent in corrosion and oxidization opposition. This is because we grant in doing nutrient processor. So that the type of nutrient is chief aspect to guarantee the user is safe to utilize is. paired than that, chromium steel steel has high wear immune. This belongings is good to hold in doing the blade because it ever crisp in cutting the nutrient. The impact stamina is besides the piece that we tend to take 304 steel since we have rotate in high velocity to cut or slit the nutrient. Stainless steel besides has a batch of categorization that we can take for the production of the blade. Therefore we have to take a specific household to guarantee the cost appraisal. afterward(prenominal) we did the re search, we decide to take unstained steel category 304 to be our stuff for the production.Stainless Steel Grade 304Fe &038 lt 0.08 % C 17.5-20 % Cr 8-11 % Ni &038 lt 2 % Mn &038 lt 1 % Si &038 lt 0.045 % P &038 lt 0.03 % S 7 These are some of its disports Forming and welding belongingss Corrosion/ oxidization opposition Deep drawing quality Excellent stamina Low temperature belongingss reacting good to indurating by cold working Ease of cleansing, easiness of fiction, beauty of optic aspect.Table 1.A Physical belongingss of 304 class chromium steel steel in the annealed statusClassDensity ( kg/m3 )Elastic Modulus ( GPa )Average Coefficient of Thermal Expansion ( mm/m/AC )Thermal Conductivity ( W/m.K )Specific alter0-100AC ( J/kg.K )0-100AC0-315AC0-538A sick 100ACat 500AC304/L/H800019317.217.818.416.221.55002.3 harvesting SPECIFICATION AND TECHNICAL DRAWING2.3.1 BLENDER SPECIFICATIOND = 12cm holdPortableRechargeablelight weightJar Capacityup to 1.5 litresH = 30cmB = 16cmL = 18cm2.3.2 EXPLODED VIEW OF BLENDERFigure 2 liquidizer Exploded ViewPartPart name1Cap2 chapeau3Jar4Jar / blade seal5Blade set6Jar yoke7On-off press release8Button spring9Upper lodging10Motor &038 A bushing11Motor saddle sawhorse screw12Switch, on-off13Switch, interlock14Prison safety15Mini phone doodly-squat16Diode17Zener rectifying organ pipe18Battery cell19Base screen20Screw, grip21Foot22Charger2.3.3 BLENDER steel SPECIFICATION3.0 STAGES OF THE PROCESS3.1 alternate PROCESS FOR EACH COMPONENT3.1.1 BLENDER BLADE ALTERNATIVE PROCESSThe suited mathematical process of blade production are projecting, stomping and hammering, we can still take away forrard the blade even with different stuff. But every procedure must has it s restrictions and ain advantages.The procedure selected is shown at table be patheticFigure 7 Blade Manufacturing Alternative ProcessesSince we have chosen the stuff, so we have look at the procedure to bring forth the mathematical product. There are diverse of procedure of available outside, we need to take suitably to suite the stuff belongingss and the functionality of the constituent. There are several guidelines that we need to obey. The choice of a suited procedure is based on the undermentioned factorsTypes of stuffs and its belongingssExpected quality and belongingss of the constituentsSize, form, thickness and complexness in bring forthing the constituentsTolerances and surface coatingimmersion procedures involvesDesign and beaming costVolume of productionEconomyNow the chart above has shown 3 primary procedures that we will discourse further to take the best production procedure. Now we discuss the casting procedure. The procedure is a popular guile procedure that can hold many advantages. The causal agency why we choose the investing casting procedure among assorted procedure of casting are because any stuff can project finished this method. The investing casting procedure is economical even for rather low mea sure usually minimal measure is 1000. Furthermore, the complex form can be produced which meet the blade design. Heat discussion of the casting merchandise is non necessitate. Excellent surface coating and truth besides can be produced through this method. Again it suites the constituent rent that dimensional and surface coating. But the procedure has the disadvantages. We have the expensive cut tool and stuff cost, long lead clip to hold the concluding merchandise, labour cost is high. after we have seen the procedure we have the clearer image of the procedure.The following procedure we will discourse the forging procedure. The blocker type of the forging will be use in this procedure. This is because this type has the low dice cost compared to another(prenominal) forging procedure. The production rate is high that will run into the smart set minimal production demand. Forging will hold the dice to use the compressive force on it in order produce the form we want. In the bloc ker forging, demand to make the machining to acquire the net form we want. The portion will non be a suited pick if the parts are thick webs and big filets. The chief cost is come from the dice cost which influenced by form and size of the constituent. The measure is besides the major revive in cost footing fabrication.Then we will make the stamping treatment. Stomping besides the sorts of opinion poll metal organizing utilizing the stamping dice and use the force on the sheet stuff. 18 The cost effectivity of the metal stomping procedure stems from its ability to bring forth material-intensive parts at production rates much high than are possible utilizing other traditional methods. With stuff for stomping about bing use in another procedure, the premier country for nest eggs is in cutting production clip.From the above treatments, we can see that stomping will leave us the most economical procedure. Although we need to bear with the high start-up cost, only when through the long term, the turnover is still good. The investing casting is too arduous and long lead clip which does non suite our selling constitution the forging is more suited for big constituent.3.2 PROCESS SELECTED AND TOTAL PRODUCT STAGES3.2.1 BLENDER BLADE MANUFACTURING PROCESS3.2.1.1PROCESS SELECTED FOR BLENDER BLADEAfter weighing the pros and cons of procedure, we have chosen the stomping which derived procedures from reformist dice drawing. 22 By utilizing stomping procedure, there are some advantages compare with other procedure like hammering and die casting. First of wholly, the stomping dies can be well less than the tooling employ in other procedures. Other than that, the Quality, truth, map, wear life and visual aspect can all be dramatically improved. By utilizing stomping procedure, the portion of stuff with tougher and harder belongingss can besides be made. Secondary operations like heat intervention and machining are needed to complete a portion. The course of seco ndary operation is reduced and it can salvage the cost.To bring forth liquidizer blade by stomping procedure, there are some secondary procedure to be taken in. after the constituent is stamped out from the stamping machine, we need to bore a little flock on the constituent for the assembly intent. After that, flexing procedure will take in to obtain the functional form of liquidizer. Then, the constituent is so to be heat treated to better its mechanical belongingss like strength and stamina. Finally, a finishing procedure will take in to sharpen the blade border by machining procedure and better the wear opposition by add-on procedure like coating of blade with Ti.3.2.1.2 BLENDER BLADE STEPS FLOW CHARTThe phases for blade fabrication system are shown in the stairss flow chart belowFigure 8 Phase OF BLADE MANUFACTURING BY STAMPING3.2.1.3 BLENDER BLADE PROCESS STAGE AND MACHINE USEDStompingThe procedure is start by stomping of a big sheet of metal. We will utilize blanking procedur e which is a cutting procedure by utilizing clout and dice to bring forth the blade profile. For blanking procedure, the merchandise is the portion which is sheared out by clout. To transport out the blanking procedure, the stamping dice and stomping machine is needed. The blade merchandise by blanking procedure is shown at the figure belowComponent( merchandise )Strip( work stuff )Scrap ( discard )Figure 9 blanking of bladeFeatures Of Stamped Parts 22 after stomping procedure, there are BURR-SIDE or CUT RADIUS feature on the stamped parts. There is a unsmooth border or faulting away burr around the side of the perforated fuddles. At The opposite side, there is a cut radius or rollover consequence where the blanking or piercing punch enters the metal surface. Both of these defects can be reverse if they affect the map ablility of the constituent. Deburring procedures can be used to take the burrs. Deburring procedure is done by utilizing deburring tool, toppling, or gritrocki ng. Drilling will do the holes consecutive through the full portion thickness. A shaving station in a progressive dice can cut down the demand for secondary handling operations. Besides, utilizing thicker stock than the concluding size called for and dual phonograph record contrition, or individual side grinding, as required will take burrs and rollover.After stomping procedure, the phenomena of CONCENTRICITY can be found on the merchandise itself. The contour of the interior and outside shows different belongingss and even thicknesses. the discrepancy can be cut down by excess allowance to the merchandises made.Besides the concentricity, the flatness/blanking deformations besides common phenomena that occur in the stamped merchandise after stomping procedure. There is the bowing rise in the merchandise due to fringe emphasis. The size of the obeisance varied with the stuff and type of dice used. The base of the defects can be through the use of compound dice.Machine used for s tomping procedure Stamping MachineIn the stamping machine the major operation is where a metal sheet is being punched utilizing a insisting tool in order to give out into coveted form. Different stomping procedure necessitate different type of dice. exercise of blanking dice is shown in figure 9Figure 10 Stamping MachineFigure 11 Stamping DieDrillingOnce the constituent is stamped out, the muted procedure will take in to bore a hole on the blade for the assembly intent. A boring machine is needed to bore the hole. The constituent after boring procedure is shown in the figure belowDrilling machineComponent( Merchandise )Figure Drilling Of BladeMachine use Drilling Machine 23 A boring machine, called a drill imperativeness, is used to cut holes into or through metal, wood, or other stuffs.Boring machines use a boring tool that has cutting borders at its point.This cutting tool is held in the drill imperativeness by a chow or and is rotated and fed into the work at variable veloc ities.Boring machines whitethorn be used to execute other operations like countersinking, drilling,counterboring, topographic point facing, reaming, and tappingFigure 13 boring machine flexureTo obtain the better map ability of the liquidizer blade, the form of the blade should be flexing with certain weight as shown in the figure 9. This is a fictile deforming procedure to alter the form of metal blade. Note has to taken that the flexing portion of the constituent is under high emphasis after the diversion procedure. To get the better of it, heat intervention will taking topographic point to hardening and reconstruct the emphasis. The constituent after flexing procedure is shown at belowFigure 14 Bending Of BladeMachine used Bending Machine 24 Bending is a common fabrication method to treat sheet metal. It is normally done on a Press brake, but besides swing-bending-machines are used. With this machine a bending stuff is being bent by following the preset angle as a mention. Th e bending operation creates a consecutive line crook while form operation may make a curving crook.Figure 15 CNC Bending MachineHeat intervention 25 To reconstruct the residuary emphasis that trap in the stamped merchandise, heat intervention is normally carried out. Heat intervention can heat the metal to recrystallization temperature that will realine the grain in the metal. The heat intervention of the metal, the cleft can be reduced and it can be hardened as the finer grain can be obtained. The undermentioned describe the procedure heat intervention of the blade.The blade lay on the ceramic tray so heat up to the specified temperature to pachydermatous the portion. The oven normally is preheated to faster the procedure. The warming procedure last for 2 hours. After procedure the ceramic tray take out from the oven. The submergence of the merchandise into oil color or H2O to execute slaking. This trap the intricate crystal in the metal construction. This procedure besides con sequences in the metal going really brittle. After slaking, the blades are reheated to about 260AC. Then the blades are allowed to chill faint in a procedure called annealing. This toughens the metal while retaining some of the crispness needed for all well(p) sharpening. Further warming and chilling rhythms may be used to indurate other specialised metals.Machine Used Heat Treating Oven 26 Heat handling oven is usage to heat the stuff up to 760AC 1370ACIt has the map to command the temperature and force per unit playing area of warming.The box furnace can manage exothermal, endothermal, and enriched ambiances including air, N, and Ar.Figure 16 heat handling ovenMachiningFinally, the blade will undergoes machining procedure as the coating procedure. 25 After the heat-treated blades are cool, they are polished and sharpened. Polishing is performed by machine in our instance. A level belt smoother is used to bring forth a smooth coating to the sides of the blade. This besides p olishes out any Markss from the punch imperativeness operation and removes the surface residue from the heat-treat operation. Next the blade is placed into a grinding fixture that passes it through a series of crunching swans. all(prenominal) revolving wheel removes the right sum of metal to organize the border alleviation, point, rough border angle, and other characteristics of the working part of the blade. When the blade is finished with these stairss, it will be rather crisp and may look ready to utilize. However, the concluding sharpening stairss are required to bring forth a durable border.Honing is the last procedure to take in. the crisp border of blade is produced by a all right grinding operation and called honing. The angle of the hone may be between 17 and 30 grades to the axis of the blade, depending upon the blade application. A small angle will bring forth a card sharper border, but the border will have on and go numb more rapidly. A all right grinding hone, or rock, is oiled and light rubbed on the knife border. This action produces the finest sharpened border.Machine Used Belt Sander 27 A belt smoother is a machine used to sand down wood and other stuffs for finishing intents. It consists of an electrical motor that turns a brace of membranophones on which a seamless cringle of emery paper is mounted.Figure 17 Belt SanderConsequence on plagiarism checker on hypertext transfer communications protocol //www.articlechecker.com/checker.phpMatched PhrasesGoogleA ResultsA FoundMATERIAL SELECTION 2 ( puzzle bustling ) Carbon steel rusts when exposed to air and wet ( execute Alert ) This Fe oxide movie is active and accelerates corrosion by organizing more Fe oxide ( great deal Alert ) Ultimate tensile strength 570 MPa ( situate Alert ) a? Excellent corrosion and oxidization opposition ( gear up Alert ) a? Can non be hardened by heat intervention ( Set Alert ) This procedure besides consequences in the metal going really brickle ( Set A lert ) Then the blades are allowed to chill slow in a procedure called annealing ( Set Alert ) This toughens the metal while retaining some of the crispness needed for all right sharpening ( Set Alert ) Further warming and chilling rhythms may be used to indurate other specialized metals ( Set Alert ) This besides polishes out any Markss from the punch imperativeness operation and removes the surface residue from the heat-treat operation ( Set Alert ) Next the blade is placed into a grinding fixture that passes it through a series of crunching wheels ( Set Alert ) Each revolving wheel removes the right sum of metal to organize the border alleviation, point, rough border angle, and other characteristics of the working part of the blade ( Set Alert ) When the blade is finished with these stairss, it will be rather crisp and may look ready to utilize ( Set Alert ) However, the concluding sharpening stairss are required to bring forth a durable border ( Set Alert ) The angle of the hon e may be between 17 and 30 grades to the axis of the blade, depending upon the blade application ( Set Alert ) A smaller angle will bring forth a sharper border, but the border will have on and go dull more rapidly ( Set Alert ) A all right crunching hone, or rock, is oiled and gently rubbed on the knife border ( Set Alert ) This action produces the finest sharpened border ( Set Alert )Entire Matched Phrases / conglomeration Submitted10 % ( 19/182 )