DEPARTMENT OF MECHANICAL ENGINEERING

 AIR BEARING An air bearing is a non-contacting system where a gas film (usually air) acts as the lubricant that separates the two surfaces in relative motion – typically this being a rotating shaft, and a stationary radial journal or axial thrust bearing. Air bearing vs Ball bearing In the quest for higher productivity, greater accuracy, and longer product life, machine tool and robotic arm OEM’s are constantly pushing the limits of spindle technology fitted to their equipment. Conventional bearing systems, usually ball bearings, cannot always deliver the very high speeds demanded by these industries while still maintaining high rotational precision, thermal stability, and long service life. This is primarily due to the mechanical contact between the balls and the races, which can result in rapid wear and excessive heat generation at high D/N ratios, leading to a loss in accuracy and even premature failure of the bearing. In addition, many advanced industries require oil free bearing

  Green Manufacturing The “greening” of manufacturing in the sense of reducing waste and pollution by minimizing natural resource use, reusing and recycling waste, and reducing emissions. Step by step procedure for Green Manufacturing: Design Procure Manufacture Packing and Distribution Customer used to the end of life Remanufacture And the cycle continues…. Applications of Green Manufacturing: Lean Manufacturing Green Chemistry Automobile design and Manufacture+ Product Design Benefits of Green Manufacturing: Company Benefits Environmental Benefits Technological Benefits Implementation of Green Manufacturing: Production Process International Organisation for standardization Regulations Challenges of Green Manufacturing: Investment Long term effort Increase in production cost Engineers This is the explanation behind Green Manufacturing.

 ADDITIVE MANUFACTURING Additive manufacturing is the process of creating an object by building it one layer at a time. It is the opposite of subtractive manufacturing, in which an object is created by cutting away at a solid block of material until the final product is complete. T echnically, additive manufacturing can refer to any process where a product is created by building something up, such as molding, but it typically refers to 3-D printing. Additive manufacturing was first used to develop prototypes in the 1980s — these objects were not usually functional. This process was known as rapid prototyping because it allowed people to create a scale model of the final object quickly, without the typical setup process and costs involved in creating a prototype. As additive manufacturing improved, its uses expanded to rapid tooling, which was used to create molds for final products. By the early 2000s, additive manufacturing was being used to create functional products. More recently,

    LMWS – PULSED FIBER LASER WELDING SYSTEM     LMWS Pulsed Fiber Laser Welding System is a compact unit with high power, high-speed lasers for welding metals and plastics. This versatile system has numerous performance options to match the right laser to your application The LMWS Pulsed Fiber Laser Welding System combines cutting-edge technology with industrial robutsness for welding applications. The 70Watt ML-7370D fiber laser is integrated into the LMWS workstation, offering an advanced processing system for welding thin metals, typically up to 250 microns) thickness. It can be used for laser welding battery tabs to batteries, to create battery modules and battery packs.   Features:   ·          A choice of 20-70 W average power pulsed fiber laser welders ·          The pulsed fiber laser welders have very short pulses, in the nanosecond range. Therefore peak power is in the kilowatt range. This concentrated laser beam pierces all commercially available alloys.

 NANO TECHNOLOGY :                 It is defined as the manipulation of matter with at least one dimension sized from 1-100 NM. Nanotechnology defined by its size is very broad, including fields of science such as  surface science molecular biology micro fabrication molecular engineering  organic chemistry    semiconductor physics energy storage by mstroeck single walled carbon nanotube,consisting of a graphite sheet wrapped into a cylinder The current research is based on the following areas nano materials  top down approaches  bottom -up approaches  functional approaches speculative bio-metric approaches conditionality in nano-materials Application: Nano electronics.

ADVANCED NON-DESTRUCTIVE TESTING (ANDT) ANDT   inspection methods utilize state-of-the-art equipment and technology to provide quick, precise, and detailed asset integrity data. Using ANDT, there’s a higher probability of flaw detection than with traditional inspection methods. Some common uses of  ANDT  techniques include the inspection and detection of: Corrosion Cracking Corrosion Under Insulation (CUI) High Temperature Hydrogen Attack (HTHA) Weld Inspection Below is a portion of the  ANDT  inspection solutions that includes: Advanced Ultrasonic Backscatter Technique   ( AUBT ) Alternating Current Field Measurement   ( ACFM ) Digital Radiography  ( DR ) Electro-Magnetic Acoustic Transducer   ( EMAT ) Guided Bulk Wave   ( GBW ) Guided Wave Testing  (GWT/ GUL ) Internal Rotating Inspection Systems   ( IRIS ) Large Structure Inspection  ( LSI ) Phased Array  ( PAUT ) Time-Of-Flight Diffraction   ( TOFD ) Pulsed Eddy Current ( PEC ) Ground Penetrating Radar ( GPR ) An Alternating Curren

  FREE ENERGY The free energy generator is  a device, which is used to generate electrical energy based on the neodymium magnets principle . There are different types of generators in different sizes, in that free energy generator is one type of generator which generates electrical energy. https://youtu.be/VuqiiOj_Pj8 (Free energy) https://youtu.be/yhvR9XdI0-8 (Pressure Energy) https://youtu.be/kTLvERQMu1k (CD solar to electric)

  Micro and Nanotechnology in Mechanical   There’s a big future in small things.  Nanotechnology is the new frontier of engineering, imagining new possibilities in manufacturing, fluid mechanics, robotics, combustion, biomedicine, measurements, heat transfer, and more. Purdue hosts the largest academic cleanroom in the world, the  Birck Nanotechnology Center , where interdisciplinary teams have access to the absolute cutting-edge of nano-scale characterization (microscopy and measurements) and fabrication (deposition, etching, lithography, etc.)  With these tools, mechanical engineers conduct world-class research in: Nanoscale manufacturing Micro- and nano-fluidics Biomolecular detection Nanoscale thermal transport Computational modeling Nanomechanical materials   Design & Manufacturing If you want to build it, first you’ve got to design it. That’s why Design & Manufacturing is such a vital aspect of engineering research