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3 years ago

What major advancement in machine tools occurred in the 1970s and what benefits did it provide? describe in your own words.

Engineering

2 answers:

mixer [17]3 years ago

4 0

Answer:

I'm just a seventh grader

kolbaska11 [484]3 years ago

4 0

Answer:

here's an essay I wrote one this topic

Explanation:

The early 1970s saw price and wage freezes and high unemployment. The oil crisis of 1973 and 1979 served to help slow an already snail-paced economy, and by 1979, the U.S. was experiencing the worst inflation in 33 years.

A growing world market was not helping the economic transition as traditionally strong big businesses like automotive and steel lost market shares to Europe and Japan. At the beginning of the decade, the government bailed out Lockheed Martin with $250 million worth of loan guarantees. Later it did the same for Chrysler—to the tune of $1 billion.

Obviously, the old ways of doing business were failing. The seeds of concern about more efficient operations, more flexibility, and higher quality were taking root in this decade for the eventual growth of a new paradigm in manufacturing that would flourish in the 80s. As NCs and DNCs gained recognition and popularity, the benefits of faster, more accurate cutting began to make demands on traditional tooling, controls, inspection, and other facets of the manufacturing process. This led to the development of many new companies who were ready to meet the challenges of a transitioning decade and make the products that would fulfill the needs of a new world of manufacturing.

As manufacturers looked for inexpensive solutions to their problems, those in the machine tool industry responded with new, lower-cost technologies. GE Fanuc Automation for one developed its Mark Century 550 Series in 1970. The highly-reliable control system was marketed as a complex, low-cost NC and became popular in the worldwide market. It introduced new features like lathe canned cycles, spindle speed monitor, battery backed tool offset, RAM memory, and cutter compensation.

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Composite beam transformations treat the composite beam as ________________:

dimaraw [331]

Answer:

Steel concrete composite beams consists of a steel beam over which a reinforced concrete slab is cast with shear connectors. In conventional composite construction, concrete slabs are simply rested over steel beams and supported by them. These two components act independently under the action of loads, because there are no connection between the concrete slabs and steel beam.

Hope this helps :) -Mark Brainiest Please :)

4 0

3 years ago

An electron is traveling with initial kinetic energy K in a uniform electric field. The electron comes to rest momentarily after

V125BC [204]

Answer:

a) E = $\frac{K}{e*d}$ b) i.

Explanation:

Assuming no other forces acting on the electron, as the field is pushing the electron back till it comes to rest momentarily, applying the work-energy theorem, the loss in kinetic energy, must be equal to the work done by the field on the electron.

The force that does work on the electron is the one due to the electric field E, and by definition of electric field, can be expressed as follows:

W = q*E = -e*E (1)

This work must be equal to the change in Kinetic Energy:

ΔK = Kf -K₀ = 0 - K = -K (2)

From (1) and (2), and solving for E, we have:

E = $\frac{K}{e*d}$

b) As the electric field (by convention) has the direction that it would have a positive test charge, the electrons (being negative charges),when starting from rest),have the direction opposite to the field.

In this case, as the electron has an initial velocity, and the field is opposing to the electron movement, we conclude that the electric field is in the direction of the electron´s motion, due to the electron slows down, and then comes momentarily to an stop, before changing direction and move opposite to the field as it is its natural behavior.

3 0

3 years ago

For the velocity fields given below, determine:

o-na [289]

Answer and Explanation: A fluid flow is steady when its properties (velocity, pressure and others) do not change over time: P = P(x,y,z), with P being any of the properties.

So, an unsteady flow does depend upon time: P = P(x,y,z,t).

1. V = [ $ay2e^{-bt}$ ]i : This velocity field is one-dimension, because there is only the component in the x-direction and unsteady, because it is dependent upon the variable time (t);

2. V = $ax^{2}i+bxj+ck$ : is a three-dimensional field, because there is one component for each direction (x, y and z) and is steady, since it's independent of time;

3. V = axyi - bytj : is a 2-dimensional field, and since it changes with time, it is unsteady;

4. V = axi - byj + ctk : is a 3-dimensional field and the flow is unsteady;

6 0

3 years ago

The Double.parseDouble() method requires a String argument, but it fails if the String cannot be converted to a floating-point n

LuckyWell [14K]

Answer:

import java.util.Scanner;
public class TryToParseDouble {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
double num;
try{
System.out.print("Input a number: ");
num = Double.parseDouble(input.nextLine());
}catch(NumberFormatException e){
num = 0;
System.out.println("Invalid input! It should be a number in double type");
}
System.out.println(num);
}
}

Explanation:

Firstly, create a Scanner object to get user input (Line 5).

Next, create a try block and prompt user to input a number and use Double.parseDouble() method to convert the input to double type in the block (Line 8-10).

Next, create a catch block to catch a NumberFormatException. In the Catch block, set the num to zero and then print out a message to inform user about the invalid input (Line 12-14).

Lastly, display the number (Line 16).

5 0

3 years ago

Consider the smoothie example given in class: Write down the production function of Tutti Frutti Smoothie example given in class

mart [117]

Answer:

Production Function : TFSq = f { ingredient 1 ...... ing. i }

Increasing/ Constant/ Increasing Returns to Scale :

Output change > / = / < Input change respectively

Explanation:

Production Function is the relationship between production inputs & outputs, given technology. It denotes the maximum output that can be generated with given inputs.

Tutti Frutti Smoothie [TFS] quantity = Function of {Ingredient1.....ingredient i}

Returns to Scale represents change in output when all inputs change in same proportion.

Constant Returns to Scale [CRS] : Output Change = All inputs change
Increasing Returns to Scale [IRS] : Output Change > All inputs change
Negative Returns to Scale [NRS] : Output Change < All inputs change

When all inputs (ingredients) change by same proportion i.e get twice 2X :- If output of Tutti Frutti Smoothie increases by > 2X i.e 3X - IRS. If it increases equal ie 2X - CRS. If it increases lesser i.e 1.5X - CRS.

6 0

4 years ago