Solid freeform fabrication

    Page 1 of 9 - About 81 Essays
  • 3d Printing Case Study

    Introduction/Background -What is the nature of the product or technology? The nature of 3d printing is nearly any area you can think of applying it to. -What is its development history? Rapid prototyping came about in the late 1980s and early 1990s. ‘Rapid prototyping ‘paved the road for all the 3d printing companies out today. (Rapid prototyping created prototypes for a manufacturer to create a prototype of a product with plastics before executing their plans and mass producing them from their required material.) The original advance in 3d printing technology started with MIT(Massachusetts Institute of Technology) and through 3d systems, a huge innovator in the 3d printing world. Charles Hull first created his Stereolithography apparatus(SLA) machine in 1983, and then 3 years later, in 1986, went on to patent his creation, and co-found 3d Systems with that success. On the other hand, Carl Deckard was working on his own RP(Rapid prototype) machine, which he termed Selective Laser Sintering(SLS). -For what may it be used (needs addressed and/or functions performed)? 3d printing, or additive manufacturing can create nearly anything we as humans can possibly think of and convert into a CAD file. From things like airplane parts, to custom fitted dentures for grandma and grandpa, from a new hand that can be hooked up to an amputee, to a printed gun named “The Liberator.” Technical Description -Describe the technical details of the product or technology (how does it work)?…

    Words: 889 - Pages: 4
  • 3d Printing Essay

    bottom up by heating and extruding thermoplastic filament. This is the only 3D printing process that builds objects with production grade thermoplastics. This is a big advantage for engineers and manufacturers alike, as the material has excellent thermal, chemical, and mechanical properties. Selective Laser Sintering (SLS) uses powdered material in the vat rather than a resin. SLS uses a laser as a power source and does not require the use of support structures, as the material being created…

    Words: 1098 - Pages: 5
  • The Melting Point Of Urea And Trans-Cinnamic Acids

    The melting point of a substance is best described as the temperature at which a solid becomes a liquid (Bruice 2014). On the molecular level, when a compound melts the forces between the molecules become weaker. This is because when a substances heats up the kinetic energy between the molecules increase causing the molecules to vibrate. When the vibrations become strong enough for the molecules to move around and pass other molecules, the compound that is being heated up starts to melt and…

    Words: 756 - Pages: 4
  • Fepo4 Temperature

    Paragraph 1 The research done by Haines on how the atomic structure of FePO4 varies when temperature increases from 294K to 1073 shows few crystal chemical relationships between SiO2 and FePO4. There is a first order variation of cell parameters and atomic orientations with temperatures lower than 980K and α-phase plays a dominant role over β-phase at high temperature. For the α-phase FePO4, the cell parameters increase with a non-linear trend when temperature increases linearly. The volume…

    Words: 718 - Pages: 3
  • Flask Synthesis Lab Report

    During the extraction process, the sand bath was set to 20℃. The 1.00 gram of ground nutmeg was transferred to the round-bottom flask (RBF) using the plastic funnel. Three milliliter of tert-butyl methyl ether and two or three boiling chips were added into the flask. The black plastic connector was used just like the distillation column with air condenser set-up. The flask was clamped to the ring stand using 3-pronged clamp. The flask was lowered into a slightly depression in the sand without…

    Words: 1450 - Pages: 6
  • Double Salt Lab Report

    the salt, it dissolved relatively quickly with the help of a glass stirring rod. As they dissolved the solution, it turned to a clear light blue color similar to that of the sky. The hydrochloric acid did not visibly change the appearance of the solution. Once stirred, they, lit the Bunsen burner and heated the solution until it was almost boiling, all with the stirring rod still inside the beaker. Then experimenters added 15 mL BaCl2 into the 250-mL beaker all at once, at which point the…

    Words: 1556 - Pages: 7
  • Comparing The Fresh And Hydrothermally Aged SCR Catalysts

    Table 3 shows the BET surface area of both the fresh and hydrothermally aged SCR catalysts. For fresh BEA zeolite and SCR catalysts, as the doping amount of catalytic additive increases, the BET surface area decreases, probably because the additive Cu, Ce, and Nb species blocked some of the zeolite channel, hindering the entry of N2 into the pores (Bin et al. 2014). After aging at 600 °C, all the samples showed 3-20 m2/g increased BET surface area. Aging condition of 600 °C is a relatively mild…

    Words: 1164 - Pages: 5
  • EDS Analysis: FESEM And Trends Analysis Of Pure HA

    3.1.3 FESEM and EDS analysis The structural morphology of the Pure HA, Sr-doped HA, La-doped HA and La/Sr co-doped HA (different La concentrations of 0.03, 0.06 and 0.1M) nanoparticles are analyzed by FESEM images are shown in Fig. 3 (a)-(f). The morphology of pure HA shown in Fig 3 (a) indicates that formation of spherical (or) chain pearl shape of nanoparticles, ranging from 70 to 84nm. Further, Sr (0.1M) doped HA and La (0.1M) doped HA belongs to Fig.3 (b)-(c), appears the formations of few…

    Words: 746 - Pages: 3
  • Haines Research Paper

    Paragraph 1 Compare and contrast the crystal structures and crystal chemistry of quartz, α-FePO4 and β-FePO4. Haines’ research paper studies the change that occurs in the FePO4 structure as it is studied from temperatures 294K to 1073K. A transition is noticed at 980K, when it’s tetrahedral α-quartz structure experiences high pressure levels, changing the structure to β-phase, a more dense octahedral structure. Cell parameters of FePO4 in α-phase increases in cell parameters and volume as…

    Words: 792 - Pages: 4
  • Melting Points Of Melting Point Experiment

    In this experiment one, are determining the melting points of different crystalline substances following a specific procedure. By finding the melting point of a crystalline substance, it helps determine what kind of compound it is as well as initiate the purity. A DigiMelt apparatus can be used to determine the melting point where a small amount of the the substance is packed into a capillary tube and heated slowly in the apparatus which includes a thermometer, a heating coil and a magnifying…

    Words: 835 - Pages: 4
  • Previous
    Page 1 2 3 4 5 6 7 8 9

Related Topics:

Popular Topics: