2018
Robotics/Automation/Manufacturing

The working of the machine will start as hand lever is cranked to impart the motion to the bevel gear arrangement. The bevel gear arrangement tends to rotate the base plate which remains supported by a roller ball bearing. The hinged top plate is lowered during the operation and lifted above when the operation attains its completion. The dough ball which remains spherical in shape is placed in between the top plate and the base plate. The spherical ball tends to change its shape under the influence of pressure imparted from rolling pin. Soon after the operation the roti is removed out from the arrangement and a new dough ball is placed and the whole process is repeated to ...

In this study an attempt has been made to understand the effect of Various Piston Profiles on the performance and emission characteristics in a combustion engine, providing an opportunity to reduce noise pollution, emission of harmful particulates, smoke, increasing the mileage & performance. Thus the unwanted skirt is removed from both sides of the piston, so that the wear resistance would be increased and the piston would be easily reciprocated.

This describes the stress and temporal and stress distribution of the piston by using FEA. The main objectives are to investigate and analyze the thermal and stress distribution of the piston at the real engine condition during the combustion process. The paper describes the materialistic optimization with using finite ...

A robotic hand is basically sensors with high degrees of repeatability, precision, and reliability and thus sensors play an important role in a robotic hand. Flex sensor and accelerometer are such devices, which accomplish the above task with a great degree of accuracy. The project Prosthetic Hand for Disabled is aimed at helping the handicapped people who don’t have one hand which limits their capabilities in real life. This hand can perform the various operations and can replace in the form of prosthetic limbs with the help of a microcontroller programming. In the development of dexterous robotic hands, the design is based on different goals which in turn depend on the type of application that the hand is being ...

Thanks to a bio-mimetic design idea, promoting a novel self-assisting/self-advancing feature, penetrating into soft and hard formations is foreseen to be performed with more reliability, less energy consumption, less maintenance, less required component and weight for the drill and hopefully less structural integrity concerns.

Employing this innovative approach favoring a continuous dual reciprocation action, such drill seemed to have the potential to harness the repeating percussive energy providing more ROP while demanding less WOB in compare to conventional methods in exploration drilling, typical task of industries such as oil & gas and geothermal energy.

On the other hand, eliminating the traditional rotary drilling action and replacing it with pure percussive one via such force transmitting hence reaction energy harvesting ...

FEM-12 an Aqueous High Temperature Fire Fighting Agent (AHTFFA) that can extinguish composite materials, metal fires with temperatures that reach 2,000 F to 8,000 F degrees, rubber tires, and wheel rim fires. The environmentally safe agent rapidly extinguishes the fire, reduces the temperature and places a coating/barrier on the burning material to reduce re-ignition.

The aqueous agent allows the extinguishment of vertical fires that cannot be extinguished by dry powders and other agents. Because it is aqueous it reduces the heat more rapidly then a dry powder as a dry powder traps the heat beneath the powder not allowing the heat to dissipate. The coating/barrier placed on the burning material reduces the possibility of oxygen and surrounding temperatures from ...

The JNX-1000 is an air bearing fast axis capable of 20g acceleration and 1000 micrometers of travel at a frequency of 100Hz and is specifically designed to cut non-rotationally symmetric surfaces. Very fast ultra-precision eddy current sensors are used for position feedback. The Fast Tool Servo (FTS) incorporates an air bearing reaction mass that travels in opposition to the tool carriage insuring that the FTS will not excite any modes of vibration on the machine that it is mounted to. The axis provides two tool mounting platforms with integral coarse and fine adjust making the initial setting of the tool height predictable and fast. The tool platforms can hold one 6.35 mm square tool shank per platform and are ...

3D printing (additive manufacturing) is enabling dramatic changes around the world today and is affecting almost every industry in one form or another. From design to prototyping and manufacturing to quality control, 3D printing is creating a paradigm shift by disrupting traditional manufacturing as we know it. Additive manufacturing offers many advantages over traditional manufacturing methods, such as the ability to rapidly manufacture prototypes or functional components, create highly complex objects without increasing the manufacturing cost or time, and through the reduction in inventory and waste, to name a few. While this creates many new opportunities, the mechanical properties of the parts created with additive manufacturing are often inferior to traditionally manufactured components, are extremely limited in the materials ...

Inspection of tunnels or canals that are underground and in places of difficult access (e.g. mountains) can be very difficult and dangerous for humans. In the future, these operations have the potential to be performed by autonomous unmanned vehicles that can access much harsher locations and conditions. However, there is a current limitation that is preventing the deployment of this technology for the monitoring of complex and expansive networks of tunnels: standard position reference technologies struggle to perform where GPS or wifi are not available, and/or environmental conditions are challenging.

Therefore, this solution can be embedded in state-of-the-art unmanned vehicles and allow to determine their exact position during inspections of tunnel networks.

The solution is based on the principle ...

Briquettes are a densified form of agricultural remains that have a certain calorific value and thermal usefulness once they have been compacted. Briquettes are slowly becoming popular as sources of fuel for boilers in semi-rural India. Not only for boilers, briquettes also serve as a great alternative for fuel-wood that is used by people living in rural India for cooking purposes. The most common raw material used for making briquettes is saw dust and biomass. These do not add carbon to the atmosphere and thus are a non-polluting source of energy. But there are numerous other materials like coffee husk, rice husk, paper pulp, sugarcane remains, etc. that are potentially great raw materials for briquettes with proper and adequate ...

Many modern technological processes require clean high vacuum environments. Diffusion pumps (coupled with mechanical pumps) can achieve high vacuum pressures (3×10-8 mbar) and are relatively inexpensive and easy to maintain. Their greatest drawback is the backstreaming of oil vapors that could potentially contaminate the chamber where the process of interest is taking place.

Likewise, some of these processes produce, as byproduct, contaminants that must be kept from entering into the vacuum system: the pipes and, especially, the pumps. One example is the pulsed laser deposition of thin films of alloys containing elements with high vapor pressure, such as sulfur, selenium, or tellurium. These contaminants travel down the vacuum pipes and may not only be hazardous to the operator´s health ...

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