Peri
Established Member
Browsing through the news yesterday I found an article about a band of teachers who'd formed a group, with the aim of sharing tips to stop students using artificial intelligence to cheat at exams.
Intrigued, I went to have a look at ChatGPT, to see what kind of answers it would give.
I asked it to explain the difference between climb and conventional milling.
A colleague suggested "What is the correct stance when filing and why?"
Another colleague asked "in milling, how do i work out the correct cutter rpm (in metric units)?"
One of our maths lecturers asked it a complicated question about two trains approaching each other on an incline, involving speed, mass, inertia and momentum.
The Chat explained what each property was, how to define it, the calculations used, and finally the correct answer showing all the working out.
The maths lecturer looked at me and shook his head - "Teaching, as a profession, is doomed" he said.
Possibly a bit dramatic, but I can see why the teachers in that group were a bit rattled
Intrigued, I went to have a look at ChatGPT, to see what kind of answers it would give.
I asked it to explain the difference between climb and conventional milling.
"Climb milling and conventional milling are two different methods of machining with a milling machine.
In conventional milling, the cutter rotates against the direction of the feed. This creates a cutting action that pushes the workpiece away from the cutter, resulting in a slight reduction in surface quality.
In climb milling, the cutter rotates in the same direction as the feed. This creates a cutting action that pulls the workpiece into the cutter, resulting in a better surface finish.
Climb milling is generally considered to be more efficient and produce a better surface finish, but it can be more dangerous because the cutting forces are directed towards the cutter, potentially causing the workpiece to be pulled into the cutter. Conventional milling is considered to be safer, but it can be less efficient and produce a slightly inferior surface finish."
A colleague suggested "What is the correct stance when filing and why?"
The correct stance when filing is to stand with your feet shoulder-width apart, with one foot slightly forward. This stance provides a stable base and allows for a full range of motion in your arms and shoulders. It is important to keep your back straight and to use your legs to support your body weight, as filing can be fatiguing if you are not using the correct posture.
It is also important to hold the file correctly, with your dominant hand grasping the handle and your other hand holding the end of the file. This allows for maximum control and precision while filing.
Having a correct stance and grip helps to ensure that the filing process is done safely and efficiently. It also helps to reduce fatigue and the risk of injury to the hands, wrists, and arms.
Another colleague asked "in milling, how do i work out the correct cutter rpm (in metric units)?"
To determine the correct cutter RPM for milling in metric units, you will need to consider the following factors:
Material: Different materials have different recommended cutting speeds.
Cutter diameter: Larger cutters require slower speeds than smaller ones.
Number of flutes: More flutes on a cutter can handle higher speeds.
Chip load: This refers to the amount of material being removed by each flute per revolution. A higher chip load requires a slower speed.
Once you have considered these factors, you can use a cutting speed chart or a formula such as: RPM = (cutting speed (m/min) x 1000) / (π x cutter diameter (mm))
However, it is important to note that this is just a rough estimate and it's always recommended to start at lower RPMs and gradually increase until you achieve the desired finish and tool life.
It's also important to follow the manufacturer recommendations and consider the tool material, coatings and geometries as well as the machine capabilities and rigidity.
One of our maths lecturers asked it a complicated question about two trains approaching each other on an incline, involving speed, mass, inertia and momentum.
The Chat explained what each property was, how to define it, the calculations used, and finally the correct answer showing all the working out.
The maths lecturer looked at me and shook his head - "Teaching, as a profession, is doomed" he said.
Possibly a bit dramatic, but I can see why the teachers in that group were a bit rattled