Method for optimizing a shearing bench and associated shearing bench

An optimization method for optimizing a shearing bench for shearing a film having a thickness less than or equal to 10 microns, the shearing bench comprising a plurality of elements having a plurality of element parameters that constitute bench parameters of the shearing bench, the plurality of elements comprising:

• at least one blade assembly, each blade assembly comprising a blade and a counter-blade that collaborates with the blade,
• a film progression system for progressing the film, and
• a blade/counter-blade urging system for urging the blade and the counter-blade of each blade assembly against one another in order to shear the film,
• the method including the steps of:
• selecting bench parameters of the shearing bench;
• measuring performance of the shearing bench presenting the selected bench parameters, so as to obtain a measured value;
• and
• comparing the measured value with a desired value;
• wherein when the measured value is strictly lower than the desired value, the steps of selecting, measuring, and comparing are re-iterated by modifying at least one of the selected parameters at each iteration until the measured value at one iteration is greater than or equal to the desired value, and
• wherein either:
• the only bench parameters that vary from one iteration to another are:
• a speed of rotation of each blade,
• a speed of rotation of each counter-blade,
• a speed of progression of the film,
• a thickness of each blade,
• a material of each blade,
• a thickness of each counter-blade, and
• a material of each counter-blade, or
• the only bench parameters that vary from one iteration to another are:
• the speed of rotation of each blade,
• the speed of rotation of each counter-blade,
• the speed of progression of the film,
• a shearing angle formed between each blade and the film, and
• an overlap between the blade and counter-blade of each blade assembly, and
• wherein the selected bench parameters at the last iteration are optimized parameters of the shearing bench.