TASK: Turning a Mild Steel Bar.We were each given a mild steel bar to
work into the shape shown in the drawing found on the following pages,
TURNING
TASK: Turning a Mild Steel Bar.
We were each given a mild steel bar to work into the shape shown in
the drawing found on the following pages, to do this we used the
Turning Lathe in the workshop, but before we could start some
measurements had to be taken. This meant using a micrometer to
determine the diameter of the bar to begin with.
A micrometer allows a measurement of the size of a body. It is an
extremely accurate piece of apparatus. The Thimble is rotated, causing
it to move right or left. It is connected to the right-hand Measuring
Rod. The measured size of the mild steel bar is the distance between
the two measuring rods when they are just in contact with the sides of
the bar.
Because of the mechanical advantage due to the fine pitch of the screw
threads that move the thimble and the right-hand measuring rod, it is
easy to use enough force in closing the rods on the object being
measured to deform either the rods or the object. A Friction Screw is
used, which applies just enough torque to rotate the thimble so it
doesn’t deform the bar or the measuring rod. This Friction Screw is
found at the end of the thimble.
The reading of the micrometer is outlined in the diagram found on the
following pages of this document.
The First part of the task was to give one end of the bar a smooth
finish, this was done by fixing the bar into the lathe using the chuck
key, then positioning the tool piece as near to the centre of the bar
as possible then shaping off a small amount of material, it is
important to get the tool piece in the correct position as if it is
too high or too low it will miss part of the material. A Cutting speed
was determined by the diameter and material of the bar then equating
this figure to one of the speeds attainable by the lathe. This turned
out to be 370 RPM for this machine selecting the relevant gears.
As the diameter of the bar reduces, the cutting speed will need to
increase.
Once one end has been smoothed, the bar was turned round and worked on
from the other end, the first task was to remove 75mm in length with a
resulting diameter of 22mm, this was done not all in one go as you had
...as he paved the way for composers of the Romantic period like Ludwig van Beethoven, Gioachino Rossini, and Franz Schubert. No one can doubt the finality that mirrors Mozart’s life in his final symphony and his final farewell.
Mozart was born to Leopold and Maria Pertl Mozart. Mozart’s father, Leopold, was a composer, violinist, and assistant concert master in the Salzburg court. Due to the fact that his father was deeply involved in music, Mozart was influenced at very young age. Mozart had begun learning how to play the piano as early as the age of three. Under his father’s advisement, Mozart and his sister,
Then investment powder is poured into the flask and the flasks are burned so that the wax is melted and investment powder becomes harder.
Mozart will forever be known as one of the top five composers of all time. His influence stretches across the world and even into today’s music. The story of his life is one of fascination and mystery, but his greatness is undoubted. His story will live on through time and perhaps, inspire future musicians to be great.
Unhealthy foods are what make the money for schools and that is why they serve them for students. (Schlafy) Schools feel like they need the extra money in the budget, even though it is at the student’s expense. Data shows that nearly 60% of all middle schools in the US serve soda from vending machines. (Schlafy) Soda is very high in sugar and is not at all good for children, but it is still sold in school vending machines. The ways food in schools is now are way too high in fats and sugars. This is not good for the children and very bad in the long run. Elementary schoolchildren have an estimated $15 billion of their own money that they can use to buy whatever they want in schools, and parents have almost another $160 billion to give students for food money. (Schlafy) Big businesses see this as a big source of profit and therefore encourage children to buy their products, and want them to be offered in school because of th4e likelihood of children buying the business’s product. All in all, obesity in the US is greatly influenced by the foods offered in schools
Throughout the United States, concern of rising health issues is a popular topic. Over a progression of many years, American fast food chains and junk food companies have risen as a common means for food replacing homemade family meals. This quick and easy habit of buying cheaply made and sold foods that lack real nutritional value has been reason for increasing health issues. This habit is seen in children just the same as adults. Children eat the quickest meal with the most sugar and fat (among other unhealthy ingredients). This habit needs to be broken to take better care of the children today. Children are eating snack cakes and other junk foods at school instead of the breakfast/lunch that is offered causing bad habits and a poor diet. The children of America are suffering from the effects of malnutrition and yet, society does not help them to better understand or give higher grade options for them to choose from. Therefore, junk food should not be allowed in schools as it imposes health risks on children, lacks requirements for the nutrition contained in them, and without offering them, children would learn many morals/lessons.
- The plumb bob was used to locate the centre of the trip plate , to
He was a great young composer that transformed into a genius that was able to write music in the short periods of time he had during the day and was able to rewrite the musical rules. After being very successful in his early years, Mozart grew little older and started looking at things in a bigger picture. He tried to fit in on many different things including languages of others. The “Magic Flute” that was written at the end of his short life is known as the ultimate expression of Mozart’s ambition to connect with the human life and the human emotion through music as well as theater. At 25 years old, Mozart is no longer a prodigy but has not proved to be an amateur composer. In Provincial Salzburg is where Mozart is still living with his father and sister. Mozart is going to Munich because they have commissioned him to write an Italian opera in a serious style. Mozart’s father said he gave Wolfgang the advice to never neglect the popular style for the unmusical public as the musical ones. Leopold agreed to be Mozart’s middle man between the poets but he didn’t know that this would be his last detailed involvement in one of Mozart’s projects. Mozart’s father said they worked every day on the poems but Mozart was determined about something totally different than his father. He had problems with everything his father done. Whether it was too long or not dramatic enough, it would never suit his needs. His
“The Industrial Revolution was another of those extraordinary jumps forward in the story of civilization” (Stephen Gardiner). One of the major parts of the industrial process has to do with metal production. Welding has been incorporated into the framework of metalworking. Welding dates back to the middle ages where forge welding processes were used to make tools and weapons, commonly known as blacksmiths. It is known that the Egyptians used forms of welding to make gold tools, jewelry, and decoration. During the 1800’s a new process was formed by using carbon electrodes to form an arc. This was done by Sir Humphrey Davy, which carried on to become Carbon Arc Welding and the most used process during the late 1800’s. As time evolved so did the
Mozart’s use of melodic contour and repetitive rhythmic motives make this piece feel very connected throughout. He begins with a two eighth note followed by two quarter note pattern. This pattern is repeated twice more until finally at measure four a new melodic and rhythmic motive is introduced. At measure four a retardation occurs using a half note to delay the resolution to the quarter note, drawing out the resolution as much as possible to create a sense of relief upon arrival. This pattern of three measures of motive “A” followed by...
5. Pick a smaller area of the object included in step 4 and enlarge it enough so that is unrecognizable. Fill the space up completely
While Bill Gates was at junior high a group of parents raise money to purchase the first computerized terminal in the school. When that happened he decided to take all his time to work on that system teaming with other students to learn about different operating systems. He excelled in his learning of systems and he started developing ideas to make business with companies in order to learn how they make their terminals. His mind for busi...
His fortunate life started after Gates enrolled in the Lakeside Preparatory School at the age of twelve. “At the age of thirteen Gates began writing his first computer programs and that is when he became friends with Paul Allen.”(Stevenson). While attending Lakeside, Gates and Allen received unlimited use of the facility 's machines like the use of schools computers. The school would let Gates write the schools program for scheduling students in classes and he would take advantage of that to have the people he wanted to be in his classes. In 1972, after graduating from Lakeside, Bill Gates attended Harvard College. Originally Gates was expected to study law
The nail clipper works to trim your nails when the second piece is at an angle to the main part of the clipper. When the second part is compressed with your nail underneath the sharp end of the two pieces, that portion of your nail is removed.
Mozart was born on Jan. 27, 1756, in Salzburg, Austria. His father was Leopold Mozart, a composer and a popular violinist. Mozart received his early musical training from his father. At the early age of 3 Mozart showed signs of being a musical genius. Then, at the age of five Mozart started composing. Beginning in 1762 Mozart’s father took young Mozart and his older sister, Maria Anna, on tours in Europe where they played the piano, harpsichord, violin, and organ, together and separately. Mozart learned to play the piano, harpsichord, and violin from his father. He gave public concerts and played at numerous courts and received several commissions.