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 Post subject: Diaspor (Sultanit)
PostPosted: Thu Mar 22, 2018 11:09 pm 
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Wie sind die Modalitäten beim schleifen von Diaspor - muß die Tafel quer zur C-Achse angelegt werden?


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 Post subject: Re: Diaspor (Sultanit)
PostPosted: Fri Mar 23, 2018 3:54 am 
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How to cut Diaspor ? Should the table be perpendicular to the c-axis ?


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 Post subject: Re: Diaspor (Sultanit)
PostPosted: Fri Mar 23, 2018 4:05 pm 
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The highest refractive index is along the c-axis, but use your judgment for orientation based on the color. This material can be heat sensitive, so I recommend that you cold dop it.

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 Post subject: Re: Diaspor (Sultanit)
PostPosted: Sat Mar 24, 2018 2:30 am 
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wegen der hitze habe ich keine probleme, ich klebe die steine, aber wie ich hörte zerspingen die steine beim schleifen sehr leicht. ich würde so vorgehen....3000 scheibe kein druck und geschwindigkeit minimal. wäre das richtig? vielen dank wieland

Google Translations wrote:
because of the heat I have no problems, I stick the stones, but as I heard the stones shatter when grinding very easily. I would proceed like that .... 3000 disc no pressure and speed minimal. would that be correct? thank you very much, wieland


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 Post subject: Re: Diaspor (Sultanit)
PostPosted: Sat Mar 24, 2018 11:21 am 
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nonprofana wrote:
wegen der hitze habe ich keine probleme, ich klebe die steine, aber wie ich hörte zerspingen die steine beim schleifen sehr leicht. ich würde so vorgehen....3000 scheibe kein druck und geschwindigkeit minimal. wäre das richtig? vielen dank wieland


Ich bin eher vorsichtig. Klebst du die Steine mit was? Epoxy oder Cyanacrylat?
Ich ziehe 12 mikron (1500) gesintert vor um 600 U/min.
Google Translations wrote:
I'm more careful. Do you stick the stones with what? Epoxy or cyanoacrylate?
I prefer 12 microns (1,500) sintered at 600 rpm.

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 Post subject: Re: Diaspor (Sultanit)
PostPosted: Sat Mar 24, 2018 4:57 pm 
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nonprofana wrote:
wie ich hörte zerspingen die steine beim schleifen sehr leicht. ich würde so vorgehen....3000 scheibe kein druck und geschwindigkeit minimal. wäre das richtig?
Du hast recht. The cleavage is very problematical. Orientate major facets away from the cleavage. Use a fine, sharp lap, and low pressure as you have suggested. I don't think speed matters much as long as your lap it flat. Diaspore is very difficult material to work. Good luck!


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