The circular mark was a completely circular scoring when folded up before soldering the piece looked like a cup or shallow beaker a brooch copper gold plated note how the scored line runs around the bend in the middle of the sheet.
Scoring marks in sheet metal.
Make sure that the pen has no ink left before you start as it can leave marks otherwise.
Fall in is commonly observed where areas of high strain rate are surrounded by large areas of low strain rate.
Simply hold the ruler down along the line you wish to score and then drag the pen firmly along the line of the ruler to create a groove.
Separating discs for scoring.
The center marks were made as pinched extruded line folds.
The following are some examples.
Die cutting and scoring happen in one pass.
Marking lines occur when sheet material undergoes high tensile stresses as it flows over sharp tool corners.
In some cases symbols provide information about the form of a piece e g how many repeats of a section or about how to play the note e g with violin family instruments a.
The two kinds of equipment have the characteristics of convenience and flexibil.
Die scoring is the process of pressing a crease into a sheet of paper to allow it to fold accurately.
Let s look at the definition of these two operations.
A scoring tool can be used to mark sheet metal.
Musical symbols are marks and symbols used since about the 13th century in musical notation of musical scores some are used to notate pitch tempo metre duration and articulation of a note or a passage of music.
There are many ways to make such a groove from chemical milling spray etching to hand working.
How to avoid sheet metal scratches in carrying blanking and bending process cnc punch press and cnc bending machine are the main equipment for sheet metal processing.
I hope this reads sensibly.