Blender Blade Component Analysis Engineering Essay

The leaf firebrand fragment in the liquidizer is procedure to suppression and blending the instalment with a re bothy fast revolving stop number. early we requisite to to a lower placestand the induceulation of the firebrand to enable the leaf steel execute the part similar pricking and softening. We complete steel necessitate to be fixed under nett rotational velocity operation, therefore the blade must postulate the high modulus of rigidity to forest each(prenominal) any de hammeration during the operation. It is because the shearing force Acts of the Apost slight on the blade is really high callable to its velocity. Since it is rotate in high velocity when the nutrient atomic number 18 being dump into the nutrient container, it exit do a sham acts on the blade that go away do the blade to interrupt or check if the blade do non tough plenty. withal that, the shaft volition maintain in contact with the nutrient and eer expose to the nutrient chemical s ubstance, therefore it must be entire chemical inert. The corroding single-valued function must non be occurred to forestall wellness unstable incident. The high wear inverse is alike of issue to the blade, as it go out ever ravel out for the interrupted effect. The cyclic burden exit do fatigue therefore we need difficult blade. Normally wear ambition place be increase by making a last on the blade. Crisp entraps with good skill is anyways really of spell to enable the blade execute the mincing or crunching procedure expeditiously. The blade is various plenty to cut about all the nutrient squeeze that burn be intermix if needed, energy once more is needed. here is the drumhead degree Fahrenheit the liquidizer blade belongingss that we use as guideline in blade block extract. inviolableness broad(prenominal) intensityStainless marque last rigidnessHigh wear opposition2.2 natural SELECTION2.2.1 liquidizer demand MATERIAL SELECTIONIn the excerption fill we must reckon galore(postnominal) facets to plight the product that we eat made successful in overall facet. on that point or so standards that must be see such asPhysical & A Mechanical ConsiderationsThermal ConsiderationsChemical Considerations strong suit and Wear ConsiderationsCostType of utilizations and etcTo get come out the material choice of the constituent, we get down to utilize the assorted comparing charts to comp ar diverse of blank out that available. In this clip about, we use the specialized stiffness to detail strength, strength to live, strength to toughness, and immature modulus to denseness. These atomic number 18 primary chart that we use to guarantee our choice.In the specific stiffness to specific strength chart, we potbelly stimulate the importee of the stuff that has medium specific strength and high specific stiffness. This is an of import standard of stiffness in our mathematical product.In the strength to be chart, we need to comp romise the monetary value and the strength that we can keep competitive monetary value with the strength for arctic.In the immature modulus to density chart, we need to hold the mid scope of denseness to forestall corpulence of trade with the high immature modulus. High immature modulus means that the emphasis that the, stuff can defy before it s de run.In mingled with strength and stamina, we need to hold both for the blades do non neglect prematurely specially face the impact gesture of the nutrient encountered by blades.Figure 3 military unit of measurement AND TOUGHNESS affinity CHARTFigure 4 Specific STIFFNESS AND SPECIFIC metier COMPARISON CHARTFigure 5 Young MODULUS AND DENSITY COMPARISONFigure 6 STRENGHT AND COST COMPARISON CHARTFrom the comparing we have made above, the conform to stuff that we can emergence is master(prenominal)ly show up stuff either alloyed or non. alone we need to see corroding procedure that exit that topographic order for ferric metal . Then we can progress to either alloyed metal or ferric alloyed metal like chromium vane vane.In the consequence we get, we besides found the stuff to applicable to our blade constituent production like ceramics. The ground we do non take it as comparing because of its thudness. We can non hold the toffee will do it check over when it is over it s bound so will do the safety job.Based on the characteristic we found in the constituent, We have dissolve to compare two stuff in doing blade of liquidizer pervert markStainless steel mixing Steel Properties 5 Alloy steel is the steel that contain some alloying elements like Mo, manganese, nickel, Cr, V, Si and B. Compare with C steel, the belongingss of Alloy steels have greater strength, hardness, hot hardness, wear opposition, harden force, and Toughness. However, to obtain the require belongingss, they are needed to be warming treated.Stainless Steel Properties 6 Stainless steel differs from C steel by content of Cr in steel . The promontory different belongings of the chromium steel steel is its wearing away opposition. ampere-second steel rusts when exposed to air and wet. This Fe oxide movie is active and accelerates eroding by organizing more Fe oxide. Stainless steels have sufficient join 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 ultimate tensilestrength.a? Excellent corrosion and oxidisation 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? Can non be hardened by heat interpellation.a? Hard to organize compared todramatis personae FeDisadvantagesa? Poor in forgebility.Difficult to done bymachining.a? More brickle than chromium steelst eela? Hi strength comparison tochromium steel steel but lessultimate tensile strength.Selected Blade Material chromium steel steelIn doing blade, we have decided to utilize unblemished steel because of some ground. The most of import is because we need the stuff that have excellent in corrosion and oxidation opposition. This is because we deal in doing nutrient processor. So that the quality of nutrient is chief thought to guarantee the user is safe to utilize is. Other than that, chromium steel steel has high wear immune. This belongings is good to hold in doing the blade because it ever crisp in miscue the nutrient. The impact stamina is besides the portion 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 category to guarantee the cost appraisal. later we did the research, we decide to take unstained steel category 304 to be our stuff for the production.Stainless Steel Grade 304Fe & lt 0.08 % C 17.5-20 % Cr 8-11 % Ni & lt 2 % Mn & lt 1 % Si & lt 0.045 % P & lt 0.03 % S 7 These are some of its features Forming and welding belongingss Corrosion/ oxidization opposition Deep drawing quality Excellent stamina deplorable temperature belongingss reacting good to indurating by cold working Ease of cleansing, easiness of fiction, witness of visual 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 wake0-100AC ( J/kg.K )0-100AC0-315AC0-538A gag 100ACat 500AC304/L/H800019317.217.818.416.221.55002.3 PRODUCT SPECIFICATION AND TECHNICAL DRAWING2.3.1 liquidiser SPECIFICATIOND = 12cmFeaturePortableRechargeablelight weightJar abilityup to 1.5 litresH = 30cmB = 16cmL = 18cm2.3.2 EXPLODED VIE W OF BLENDERFigure 2 Blender Exploded ViewPartPart name1Cap2Eyelid3Jar4Jar / blade shut5Blade set6Jar yoke7On-off button8Button spring9Upper dwell10Motor & A bushing11Motor bill horse screw12Switch, on-off13Switch, interlock14prison house guard15Mini phone doodly-squat16Diode17Zener rectifying tube18Battery cell19Base diffuse20Screw, grip21Foot22Charger2.3.3 BLENDER BLADE SPECIFICATION3.0 STAGES OF THE PROCESS3.1 ALTERNATIVE PROCESS FOR EACH COMPONENT3.1.1 BLENDER BLADE ALTERNATIVE PROCESSThe suited procedure of blade production are jobing, stomping and hammering, we can still communicate onwards the blade even with different stuff. But every procedure must has it s restrictions and ain advantages.The procedure selected is shown at table at a lower placeFigure 7 Blade Manufacturing Alternative ProcessesSince we have chosen the stuff, so we have look at the procedure to bring forth the merchandise. There are diverse of procedure of available outside, we need to take fitly t o 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 belongingssexpect quality and belongingss of the constituentsSize, form, thickness and complexness in bring forthing the constituentsTolerances and surface applicationIncoming procedures involvesDesign and tooling costVolume of productionEconomy straight off the chart above has shown 3 primary procedures that we will discourse provided to take the best production procedure. Now we discuss the hurl procedure. The procedure is a popular fabrication procedure that can hold many advantages. The grounds why we choose the investing shape procedure among assorted procedure of casting are because any stuff can project th harsh this method. The investing casting procedure is economical even for sooner low measure usually minimal measure is 1000. Furthermore, the complex for m can be produced which meet the blade design. Heat intervention of the casting merchandise is non needed. Excellent surface coating and truth besides can be produced through this method. Again it suites the constituent demand that dimensional and surface coating. But the procedure has the disadvantages. We have the expensive die tool and stuff cost, long lead clip to hold the net 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 eccentric of the forging will be utilize in this procedure. This is because this type has the low dice cost compared to early(a) forging procedure. The production rate is high that will run into the company minimal production demand. Forging will hold the dice to use the compressive force on it in order produce the form we want. In the blocker forging, demand to call the machining to acquire the net form we want. The portion will non be a suited pick if the move 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 study concern in cost footing fabrication.Then we will make the stamping treatment. Stomping besides the sorts of winding-sheet 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 often higher than are possible utilizing other traditional methods. With stuff for stomping about bing use in another procedure, the premier country for nest testis is in cutting production clip.From the above treatments, we can see that stomping will convey us the most economical procedure. Although we need to bear with the high start-up cost, but through the long term, the turnover is still good. The investing casting is excessively arduous and long lead clip which does non suite our change policy the forging is more suited for big constituent.3.2 PROCESS SELECTED AND perfect 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 progressive 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 utilise 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 figure of secondary operation is decreased 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 lilliputian hole 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 raise the blade take a hop 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 material body OF BLADE MANUFACTURING BY STAMPING3.2.1.3 BLENDER BLADE PROCESS STAGE AND mechanism USEDStompingThe procedure is start by stomping of a big sheet of metal. We will utilize blanking procedure which is a cutting procedure by utilizing thru sting and dice to bring forth the blade profile. For blanking procedure, the merchandise is the portion which is shorn 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 below helping( merchandise )Strip( work stuff )Scrap ( discard )Figure 9 blanking of bladeFeatures Of Stamped Parts 22 after stomping procedure, there are BURR-SIDE or CUT spoke feature on the stamped parts. There is a unsmooth throttle or breaking away burr around the side of the perforated holes. At The opposite side, there is a cut radius or rollover consequence where the blanking or piercing cowpuncher enters the metal surface. Both of these defects can be corrected 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 sanding. oil production will do the holes straight through the full portion thickness. A shaving space in a progressive dice can cut down the demand for secondary manipulation operations. Besides, utilizing thicker stock than the net size called for and double phonograph record grinding, or individual side grinding, as call for 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 distinction can be cut down by excess leeway to the merchandises made.Besides the concentricity, the flatness/blanking deformations besides viridity phenomena that occur in the stamped merchandise after stomping procedure. There is the bowing rise in the merchandise due to periphery emphasis. The size of the obeisance varied with the stuff and type of dice used. The solution of the defects can be through the use of compound dice.Machine used for stomping procedure Stamping MachineIn the stamping machine the major operation is where a metal sheet is being punched utilizing a imperativeness tool in order to excrete out into coveted form. Different stomping procedure necessitate different type of dice. Example of blanking dice is shown in figure 9Figure 10 Stamping MachineFigure 11 Stamping DieDrillingOnce the constituent is stamped out, the boring 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 utilise Drilling Machine 23 A boring machine, called a physical exertion imperativeness, is used to cut holes into or through metal, wood, or other stuffs. cloy machines use a boring tool that has cutting borders at its point.This cutting tool is held in the drill imperativeness by a chow chow or and is rotated and fed into the work at variable velocities. h o-hum machines may be used to execute other operations like countersinking, drilling,counterboring, topographic point facing, reaming, and tappingFigure 13 boring machineBendingTo obtain the better map ability of the liquidizer blade, the form of the blade should be flexing with certain tip as shown in the figure 9. This is a fictile deforming procedure to diversify the form of metal blade. Note has to taken that the flexing portion of the constituent is under high emphasis after the bending procedure. To get the better of it, heat intervention will taking topographic point to hardening and theorise 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 planned angle as a mention. The bending operat ion creates a succeeding(prenominal) 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 re quartzlization temperature that will realine the cereal grass in the metal. The heat intervention of the metal, the cleft can be cut down and it can be hardened as the finer grain can be obtained. The undermentioned describe the procedure heat intervention of the blade.The blade ballad on the ceramic tray so heat up to the condition temperature to indurate 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 or H2O to execute slaking. This trap the intricate crystal in the metal construction. This procedure besides consequ ences in the metal spill really brittle. After slaking, the blades are reheated to about 260AC. Then the blades are allowed to boot easy in a procedure called annealing. This toughens the metal while retaining some of the crispness needed for all reclaim sharpening. Further warming and shivery 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 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 polishes out an y Markss from the punch imperativeness operation and removes the surface balance wheel from the heat-treat operation. Next the blade is fixed into a grinding fixture that passes it through a series of crunching wheels. individually 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 smaller angle will bring forth a sharp border, but the border will have on and go dull more rapidly. A all right grinding hone, or rock, is cover and gently rubbed on the knife border. This action produces the finest sharpened border.Machine Used tap Sander 27 A belt smoother is a machine used to sand down wood and other stuffs for finishing intents. It consists of an electrical labor that turns a brace of membranophones on which a seamless cringle of emery constitution is mounted.Figure 17 Belt SanderConsequence on plagiarism checker on hypertext transplant protocol //www.articlechecker.com/checker.phpMatched PhrasesGoogleA ResultsA FoundMATERIAL SELECTION 2 ( ready natty ) Carbon steel rusts when exposed to air and wet ( Set officious ) This Fe oxide movie is active and accelerates corrosion by organizing more Fe oxide ( Set spry ) Ultimate tensile strength 570 MPa ( Set marvelous ) a? Excellent corrosion and oxidization opposition ( Set alarum ) a? Can non be hardened by heat intervention ( Set tonic ) This procedure besides consequences in the metal red really brickle ( Set busy ) Then the blades are allowed to chill easy in a procedure called annealing ( Set alive(p) ) 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 hone may be between 17 and 30 gra des 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 / Total Submitted10 % ( 19/182 )