Home > Topic > hydraulic
1 " I’m not this unusual,” she said. “It’s just my hair.”She looked at Bobby and she looked at me, with an expression at once disdainful and imploring. She was forty, pregnant, and in love with two men at once. I think what she could not abide was the zaniness of her life. Like many of us, she had grown up expecting romance to bestow dignity and direction.“Be brave,” I told her. Bobby and I stood before her, confused and homeless and lacking a plan, beset by an aching but chaotic love that refused to focus in the conventional way. Traffic roared behind us. A truck honked its hydraulic horn, a monstrous, oceanic sound. Clare shook her head, not in denial but in exasperation. Because she could think of nothing else to do, she began walking again, more slowly, toward the row of trees. "
― Michael Cunningham , A Home at the End of the World
2 " Stephenson had large wrought-iron boiler plates available and he also had the courage of his calculations... The idea found its best-known expression in the Menai railway bridge opened in 1850. Stephenson's beams, which weighed 1,500 tons each, were built beside the Straits and were floated into position between the towers on rafts across a swirling tide. They were raised rather over a hundred feet up the towers by successive lifts with primitive hydraulic jacks. All this was not done without both apprehension and adventure; they were giants on the earth in those days. "
― , The New Science of Strong Materials: Or Why You Don't Fall Through the Floor
3 " Many people implicitly believe in the Hydraulic Theory of Violence: that humans harbor an inner drive toward aggression (a death instinct or thirst for blood), which builds up inside us and must periodically be discharged. Nothing could be further from a contemporary scientific understanding of the psychology of violence. Aggression is not a single motive, let alone a mounting urge. It is the output of several psychological systems that differ in their environmental triggers, their internal logic, their neurobiological basis, and their social distribution. "
― Steven Pinker , The Better Angels of Our Nature: Why Violence Has Declined
4 " So, what's the story?" " No story. Just a nightmare.”“Meaning?”“Meaning, heavy compression lines in his cartilage, severe bruising on his kidneys, liver and lower intestines. Fracture marks on his collar bone, tibia, radius, humerus, scapular, femur and every single one of his ribs have been broken. Don't even get me started on the concussive damage to his skull and brain tissue. Twenty-three percent of this boys body is scared for life. And yet, every organ is functioning normally and his neurological activity is above average. He's eighteen years old and he weights about two bills but remove the scar tissue and he'd weigh about a buck-ten. All in all, I say he lived inside a hydraulic car press, went through the Napoleonic wars and was on board the Hindenburg when it went down in flame and yet he's okay...this boy just refuses to die. "
5 " I love the quietness of the library, the gateway to knowledge, to the French language and medieval history and hydraulic engineering and fairy tales, learning in a very primitive form: books, something that's quickly giving way to modern technology. "
― Mary Kubica , Pretty Baby
6 " Broaching is a precise machining process in metalworking domain which uses a toothed tool called broach to cut materials into a predetermined shape. Broaching works best for odd shapes where precision machining is needed and hence finds wide application in a number of industry in India and worldwide. Broach resembles a saw to certain extent but unlike a saw, its teeth become larger in size across its length. A broach gives shapes by roughing or removing the material, semi finishing and then by imparting the ultimate finishing. Round or odd shapes, for both internal and external surfaces, can be conveniently formed by broaching. This multi edge tool can shape any metal or metallic alloy but works best on softer materials like plastic, wood, bronze, aluminum, etc. Resharpening of the tool The broach that imparts shape to many work pieces can work properly only when the size and shape of its teeth are perfect. With time and usage, the teeth tend to lose its sharpness and become blunt. Using a dull broach may lead to permanent damage of its teeth. To enhance the broach life and minimize the tooling expense, it needs to be re-sharpened on time. When to opt for resharpeningWhen broaching produce roughly shaped work pieces, it is definitely time for re-sharpening. However, with a little bit of watchfulness, one can even get it sharpened before it delivers poor finish or tearing. Some of the other conditions when this toothed tool will require re-sharpening are:• Excessive hydraulic press pressure required to run the broach• Nicks and scratches on the teeth making it dull • Broach starts drifting• Cutting edges show signs of wear • Chattering occurs while broaching Re-sharpening requires high precision. Removing excessive material from the teeth will adversely affect its longevity. Only proper sharpening will ensure time efficiency and high quality output. Teeth welding, grinding of gullets and teeth crest, reshaping teeth to proper taper are some of the methods used in re-sharpening.Broaching, once used for machining only internal keyways, is now used for machining a plethora of shapes and surfaces for high quantity of work pieces. Broaching requires less tools than most of the other machining process and saves considerable amount of output time and hence favoured for high volume production irrespective of its high cost. In India, broaching finds wide application in the automobile industry. Therefore, a large number of players are foraying into the broach manufacturing industry on a regular basis. "
― Ankur sood