CHAPTER 3. CAM OPERATED PUNCHING AND SLOTTING MACHINE 3.1 Working principle Slotting machine can simply be considered as horizontal slotting machine where the single point cutting tool reciprocates horizontally and the work piece, being mounted on the table. In this machine also the length and position of stroke can be adjusted. slotting machine are generally used to machine internal surface like a flat. Formed grooves and cylindrical. slotting machine for their low productivity and generally used instead of general production for piece production required for repair and maintenance. punching is a metal forming process that uses a punch press to force a tool, called a punch, through the work piece to create a hole via shearing. The punch …show more content…
The punching machine is reciprocating machine tool in which, the cam containing rod holding the tool reciprocates in a vertical axis and the cutting action of the tool is only during the downward stroke the slotting machine is horizontal slide holding the cutting tool is reciprocated by a cam and connecting rod mechanism. so here quick return effect is absent. Punch tooling (punch and die) is often made of hardened steel or tungsten carbide. A die is located on the opposite side of the work piece and supports the material around the perimeter of the hole and helps to localize the shearing forces for a cleaner edge. There is a small amount of clearance between the punch and the die to prevent the punch from sticking in the die and so less force is needed to make the hole. The amount of clearance needed depends on the thickness, with thicker materials requiring more clearance, but the clearance is always less than the thickness of the work piece. The clearance is also dependent on the hardness of the work piece. The punch press forces the punch through a work piece, producing a hole that has a diameter equivalent to the punch, or slightly smaller after the punch is removed. All ductile materials stretch to some extent during punching which often causes the punch to stick in the work piece. In this case, the punch must be physically pulled back out of the hole while the work is supported from the punch side, and this process is known as stripping. The slug from the hole falls through the die into some sort of container to either dispose of the slug or recycle
Discussion 1. Zn0 (s)+ Cu2+S6+O42-(aq) →Cu0(s) + Zn2+S6+O42-(aq) Zn0(s) → Zn2+(aq) + 2e- Cu2+(aq) + 2e- → Cu0(s) Zn0(s) + Cu2+(aq) → Zn2+(aq) + Cu0(s) Oxidant (oxidizing agent) is the element which reduces in experiment.
Over these 15 consecutive days our criminal justice class has watched the decomposition of 9 still born piglets, which were laid out in a specific way, with specific wounds. Piglet 10 was put into a box at the beginning of the experiment, and was not revealed until the end of it. Each piglet was in its own condition. Piglet 0 was naked in a box, Piglet 1 was naked on the grass, piglet 2 had 1st, 2nd, and 3rd degree burn all over its body, it too was laying on the grass, piglet 3 was stabbed behind right shoulder, also lying on the grass, piglet 4 had a .380 bullet would on its side, it was laying on the grass, piglet 5 was clothed on the grass, piglet 6 was naked piglet on the black top, piglet 7 was clothed on the black top, piglet 8 was suspended in the air with clothes on, and piglet 9 was suspended in the air naked. At the beginning of the experiment we hypothesized on theories we now know the answer too.
1. Identify the range of senses involved in communication • Sight (visual communication), Touch (tactile communication), Taste, Hearing (auditory communication), Smell (olfactory communication) 2. Identify the limited range of wavelengths and named parts of the electromagnetic spectrum detected by humans and compare this range with those of THREE other named vertebrates and TWO named invertebrates. Figure 1: the electromagnetic spectrum source: www.ces.fau.edu Vertebrates Human Japanese Dace Fish Rattlesnake Zebra Finch Part of electromagnetic spectrum detected ROYGBV (visible light) detected by light sensitive cells in the eye called rods and cones.
Introduction For two days, on the 14th and 15th of April, a field excursion to Hastings Point, New South Wales was conducted. At Hastings Point, topography, abiotic factors and organism distribution were measured and recorded, with the aim of drawing links between the abiotic factors of two ecosystems (rocky shore and sand dunes), the organisms which live in them, and the adaptations they have developed to cope with these conditions. Within these two ecosystems, multiple zones were identified and recorded, and this report also aims to identify the factors and organisms associated with each zone. Lastly, using data and observations from the past, predictions for the future of the rock pool ecosystem were made.
In this week’s lab we had to determine the density of a quarter, penny, and dime. My question was “How does is each coin?” Density is the amount of mass in an object. To find the density of each coin in this lab, we used a triple beam balance to find each coin’s mass and a graduated cylinder to find their volumes. With all this information, I can now form a hypothesis.
During this experiment, mitochondria were isolated from 20.2 grams of cauliflower using extraction buffer, filtration through Miracloth, and centrifusion. Twelve samples containing various volumes of mitochondrial suspension, assay buffer, DCIP, sodium azide, and citric acid cycle intermediates were prepared to be read by a spectrophotometer. The inclusion of the dye DCIP allowed for the absorbance of the reactions between the mitochondrial suspension and the TCA cycle intermediates succinate, malonate, and oxalate to be measured, as DCIP turns from blue to colorless as the activity of succinate dehydrogenase increases. Experimental Findings Increasing the number of mitochondria in the reaction did increase the reduction of DCIP relative to the amount of mitochondrial suspension present.
Genetic engineering is changing the DNA code to express different traits. A plasmid is a circular piece of DNA that contains important genetic information. Recombinant DNA is the product after inserting your desired genes. The genes we hoped to insert in the pGLO lab were the GFP gene and the ampicillin resistance gene. GFP was needed so that we would tell if the ampicillin resistance gene had been properly placed when the bacteria glowed under a UV light.
Lab Report- Penny Drop Lab Abstract: This lab is called the Penny Drop Lab. In this lab, your goal is to find out how many drops of water you can fit on the top surface of a penny. You are trying to find the surface tension between two liquids. In this case, we used soapy water and plain water. Adding soap ends up reducing the surface tension of the water.
The purpose of this lab was to change pennies from copper to silver to gold, like alchemists have attempted to do in history. Through the data and observations gathered throughout this experiment, it can be concluded that the pennies were not changed into a different element. For example, the density of the penny from 2005; which was the penny that was experimented on to see whether or not it could turn into silver; was 4.62 g/cm3 before the experiment and 4.89 g/cm3 by the end of the experiment. If this copper penny really would have turned into silver, then the density of the penny would be 10.49 g/cm3; which is the density of silver; by the end of the experiment. The penny may have turned silver in color, but this was only because it was plated in the zinc that was added to the beaker of water in the experiment.
Club Cutting Club cutting is the most commonly used cutting technique. It creates a smooth blended look without the use of texture. This cutting technique creates graduated or uniform layers.
You have different jobs like the skilled positions or like the position of enforcer a.k.a. the fighter. The guys who you usually see slamming other guys in the walls are the enforcers or the guys who more often than not start the fights. They are also called “heavyweights” sometimes because they are the bigger guys who end up fighting and knocking each other out.
Elijah Brycth B. Jarlos IX-Argon 1. Multicellularity is a condition of an organism to have multicellular cells. An example of a organism who has multicellular cells are plants, animals, and humans. The main reason of why scientists have a hard time finding a good set of existing organisms to compare. Is neither the first set of organisms which is being compared is dying as fast as the second specimen is being examined or they just can’t find the right species.
The gummy bear's mass and volume will increase while the density of the gummy bear would decrease after it is put into water overnight. (#)This lab experimented to figure out wah changes would take to the gummy bear’s mass, volume, and density after sitting in a cup of water overnight. To do this the gummy bear's dimensions and weight was taken on the first day, along with its density and then the gummy bear was placed and water. When the gummy bear was taken out of the water on day two, the dimensions, weight, and density were taken again, and the difference between the two days was found. (#1)
Usually, the force exerted by the finger will never be enough to move the wall, so the wall remains still. Figure 5 : Finger exerting a force onto a
Forces and Newton II Elias Ghantous PHYS 151 – Section NQ Thursday 10:10am Hasbrouck Lab Room 214 October 13, 2017 Abstract In this experiment, I studied how forces cause an object to accelerate. I also studied the relationship between force vectors, mass and acceleration. Gathering of data took place through the use of a force table and a PAScar track system.