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rajiv_damani
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Join Date: Apr 2007
Location: RAJKOT, GUJARAT - INDIA
Posts: 51

Ferrite Steel Washers

12/19/2007 1:20 AM

RESPECTED MEMBERS,

I would like to know the manufacturer procedure, I could adopt for manufacturing FERRITE STEEL WASHERS,[AISI 430] for 27.00mm dia. I would request suggestions on this with context that, it has to be huge productive technology. The washers have to be annealed and finished. For which I was presuming to go with, deburring and shot blasting or vibratory finish process. do guide me. please.

thank you,

yours sincerely

RAJIV DAMANI

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raimon
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Join Date: Jun 2007
Posts: 4
#1

Re: Ferrite Steel Washers

12/20/2007 9:06 AM

I would like to know the manufacturer procedure, I could adopt for manufacturing FERRITE STEEL WASHERS,[AISI 430] for 27.00mm dia. I would request suggestions on this with context that, it has to be huge productive technology. The washers have to be annealed and finished. For which I was presuming to go with, deburring and shot blasting or vibratory finish process. do guide me. please.

Depends on thickness and tolerances, can you complete?
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rajiv_damani
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Join Date: Apr 2007
Location: RAJKOT, GUJARAT - INDIA
Posts: 51
#4
In reply to #1

Re: Ferrite Steel Washers

12/25/2007 3:30 AM

Hi raimon,

Sorry for the delay as I was out of the city. Well, apologies again for the short infor. but the thickness would be 2.5 - 3.0mm. tolerance +/-.5mm. Hope the infor completes the base. I anxiously await to hear from you.

Thanks again, RAIMON

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Milo
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Join Date: Jul 2006
Location: "Dancing over the abyss."
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#2

Re: Ferrite Steel Washers

12/20/2007 10:17 AM

Stamp from flat roll with a punch press.

Machining from bar stock will leave too much kerf loss, though a rotary saw for cutoff on screw machine will minimize this.

shot blasting is a no no- the iron dust will contaminate and nucleate rust.

milo

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rajiv_damani
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Join Date: Apr 2007
Location: RAJKOT, GUJARAT - INDIA
Posts: 51
#3
In reply to #2

Re: Ferrite Steel Washers

12/25/2007 3:24 AM

Thanks Milo,

so after annealing, for the smooth surface finish, I presume I should opt for vibrator or rotary drum [with ceramic bits].Or that would give dents on the surface? If so, how about grinding, on rotary or horizontal surface grinder?

kindly guide please.

thanks again for the time to reply

RAJIV DAMANI

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Milo
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#5
In reply to #3

Re: Ferrite Steel Washers

12/25/2007 8:55 AM

The flat roll should have a smooth surface finish.

Not sure why you want to anneal. Its a washer, not a high stress part.

If you anneal in vacuum, it will retain its bright finish.

vibrator or rotary tumble will give adefinite texture.

I can't imagine why you'd want to surface grind- and again that would require a passivation to prevent future rust.

Your questions seem determined to add cost to what should be a very simple process.

milo

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