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magnumz
03-27-2008, 04:34 AM
As I understand it, The riser sections are pinned together with stainless steel pins. Has anyone took into consideration of galvanetic corrosion of the two dissimilar metals being in contact with each other ( the stainless pins and the aluminum riser ) and if so, what has Martin done to combat the corrosion? I'm in the market for a new bow and the Martin line is very appealing to me.

bfisher
03-27-2008, 07:46 AM
WOW, that one is far beyond my knowledge and I worked in a steel mill for 30 years. You must have an extensive knowledge base in the chemical reaction between dissimilar metals.

You probably are aware that not nly are the three pieces pinned, but also bolted. Then the riser is dipped. The process prettymuch eliminates any exposure to the elements. Does this count for anything?

magnumz
03-27-2008, 08:04 AM
I deal with HVAC on the indusrial side and we deal a lot with corrosion due to dissimilar metals. I was just curious, because the riser has to be under a lot of stress when you draw the string back. I did not know that the risers was also bolted together, the pins must be used for alignment purposes in which case the bolts would take most of the stress.

Darrenhood
03-27-2008, 09:46 AM
One of the answers I've been given to questions like that is, "Try it and let me know." Nice?

cdfirefighter1
03-27-2008, 09:57 AM
yes bare steel and bare alluminum do corode very badly when mated together.. but ther way the bows are put together I woulkd think that is not a problem as the parts are not exposed to the air...


for example have you ever tried to get a tight fitting aluminum wheel off of a steel hub after it has been there for awhile?? you will likely need a sledgehammer.. or on alot of trucks they run a steel inside wheel and an aluminum outside... you will break alot of the inner thimbles off getting them apart to replace tires and such due to the electrolisis from mateing the steel and aluminum like that... but like I said above the bow parts are not exposed to the air so I would not worry about it... im on my second martin with a 3 piece riser and not a problem...

bfisher
03-27-2008, 12:00 PM
You're on your second one and askng a question like that? Shame on you. I think you're trying to start trouble. LOL.

It was a good question though. Just shows we're not all a bunch of yahoo's like Darrenhood.

Darrenhood
03-27-2008, 01:36 PM
Nothing to make a fella's jaw drop like public humiliation on the internet, jackass.:D

Even without exposure to dissimilar metals, just slicing open what used to be, or could have been, one piece of metal, you've created a point for contaminants to get in & stay till they've done their work.

But how many have pulled a machined aluminum limb pocket off an aluminum riser, that was held on by steel bolts, on a 10 year old bow, & found signs of corrosion? I haven't, so I hope we'll be OK.

Heck, most every accessory on the bow has steel bolts going into an aluminum hole, with two machined aluminum surfaces pressed against each other. No signs of corrosion yet. Schweeew!!! Had me worried for a minute.

No matter how bad Bfisher & Flytier insult me, I know they love me.

Darrenhood
03-27-2008, 01:39 PM
When I first got here, it was all facts & no B.S. Getting to be more fun here. Used to have to go to BC for entertaining abuse. Now we can get everything we need in one stop.

A higher quality of mud slinging, keeping it between Martin shooters.

Darrenhood
03-27-2008, 01:53 PM
... and I worked in a steel mill for 30 years.

Were you turning black sand into steel, hammering out swords in Scottland, pumping goat skin bellows and...

cdfirefighter1
03-27-2008, 03:37 PM
You're on your second one and askng a question like that? Shame on you. I think you're trying to start trouble. LOL.

It was a good question though. Just shows we're not all a bunch of yahoo's like Darrenhood.

shame on me for asking what question?? im the one who said i was on my second one.. and i did not ask any questions...

flytier17
03-27-2008, 03:46 PM
How long would this process of decay take?

Diana, You are just so succeptibe for that humiliation, we can't resist.

cdfirefighter1
03-27-2008, 03:58 PM
since the risers are also put together with stainless steel I really dont think there will ever be a problem with them.. seems like a good solid design to me.. and Ill keep buying them:D

magnumz
03-27-2008, 05:10 PM
Man!! Yall are just brutal ;) :D. I like good discussions, guess I'm just old school when it comes to everything. I like the concept of using smaller billets to machine the riser parts from and pass the savings down to the customer, shows a company willing to give you the best product possible without eating a hole in the ole wallet. With a lifetime warranty, and I tend to keeps things for a long time; ie. the same wife for 24 years, the same house for 20 years, the same truck for.... well, you get the picture, you really can't go wrong. Guess I'll just have to buy one and add it to my collection, but which one will it be :rolleyes: :rolleyes:

flytier17
03-27-2008, 08:23 PM
Get the Firecat!

Our shop is selling MOABS for $316 Cdn. HTats less than the Bengal is being advertised for USD!!!!!! And these are top-notch bows.

magnumz
03-28-2008, 04:13 AM
I'll have to find a local dealer and try one out.

bfisher
03-28-2008, 08:04 AM
I'll have to find a local dealer and try one out.


What do you want to use it for? I'd pick the Mystic for a combo target/3D bow.

For hunting only, where ranges are fairly short I'd opt for the Moab. It's pretty much the same as the Bengal, but mass weight is less with the new riser design.

Of course, I'm a speed freak so I chose the FireCat. This will be my dedicated 3D bow for this year. I'm temporarily only able to draw about 35#, but set up for 3D, shooting a 267gr arrow at 27" draw this things doing about
250-260 fps right now. If and when I get my strength back and shoot 50# I figure to tweak something around 290-295 fps. Shouldn't be that hard as my Pantera/nitrous X was doing 287 fps at the same specs and it IBO's 20-30 fps slower than the FireCat.

The trick to testing these bows is, when you shoot them, see what kind of poundage it takes to achieve a certain speed. In other words, shoot the Moab and crono it. Then shoot the FireCat and see what poundage it takes to achieve the same speed. Bet you find it's about 7-8# less. This tends to maked the draw curve a little more user friendly, plus it doesn't wear and tear the arms and shoulders out as much over time.

Just a thought.

Barry

magnumz
03-28-2008, 03:27 PM
I'll keep that in mind when I test them out. It will mainly be used for hunting with some 3-D for fun. I'm use to a 2001 PSE Carrera 30" @ 65lbs with the U1 cam, Trophy Taker drop rest, D-loop, Rock Solid string and cable, Beman ICS Hunter arrows @ 30" with FOB's. I just got the itcheys for something new to play with.