Wolframite, (Fe,Mn)WO_4

[@josealbertobejaranoulloa2280]

Thank you, dear Harry!

[@bhadeshia123]

You are very welcome :-)

[@prophetrob]

Thank you

[@bhadeshia123]

You're very welcome.

[@mrmagoo-i2l]

Hello Professor I am new to your channel, i am currently doing a study for university on the wrinkling defect during deep drawing. Do you have any videos of yours you can reccomend? Thanks.

[@bhadeshia123]

Sorry, but I do not have that information. As I understand it, such wrinkling is caused by mechanical effects during the drawing, for example, inadequate pressure at the clamps, and friction.

[@mrmagoo-i2l]

@@bhadeshia123 Thats right, when the minor strain is negative. Usually caused by hoop stress. Blank holder force is used to mitigate it, this is what i am investigating. If no videos come to mind then thats no problem, a lot of your videos are too advanced for me and cover material properties. Mechanical properties 8 - formability is the only video I've found relevant to me so far. Thanks for your reply.