
A very warm welcome to our course! In this short introduction you will get to know your lecturer Sarah, the structure of this brief course and the learning goals of this Mini Course about the technical surfaces.
To start, the texture of a technical surface is explained. It can be described in the form level, the waviness level and finally the roughness level. For the roughness you will get to know the well-known parameters Ra and Rz and learn how to actually calculate them.
After the theoretical input, let's add some practical tasks! In this exercice you repeat some theory from the video lesson and you calculate the roughness parameters on you own.
In this lesson it is all about tolerances for surfaces. You learn how to use the correct indicators in technical drawings and some production processes are briefly introduced.
Now you train to use the surface indicators from the video lesson in the right way. Your task is to read them correctly and to chosse the right indicator for a specific desired finish.
Dear Student,
hello and a very warm welcome to this free Mini-Course about technical surfaces! Together we will take an overviewing look at everything that is important when it comes to surfaces, like their roughness, waviness, texture and how to conduct the tolerancing for this.
Topics
roughness of surfaces (and calculating the roughness parameters Ra and Rz)
waviness of profils
form and texture of surfaces
Tolerances of surfaces
Indicators for surfaces (so that you can read and write technical drawings)
introduction to some production processes
Course structure
For each topic, first there is a video lesson to provide you with all the theoretical input you need. Right after there will be an hands-on exercice video to give you the opportunity to train what you have just learnt! For the exercices there is some additional exercice material that you can download. All the slides from the video are also given to you as extra material.
Lecturer
This course is held by Sarah. She is studying mechanical engineering and English at RWTH Aachen, one of the best universities in Germany. Thus, she is definitely the right person for the job and she is exicted to tell you a lot about technical surfaces!