We currently laser weld small Stainless Steel pins into through-holes. We are finding it impossible to do it with gold (we manufacture luxury-goods accessories). Does anybody have experience with laser-welding gold?
Our laser is a 700W Trumpf unit; welding speed 1000 mm/minute; laser beam...
Can anybody point me to additional sources of texture? At our company we have the UG module "Visualize", which already gives a fair smooth reflecting surface. We need though to arrive to an even better Mirror-Polished reflection, which is not available in "Visualize".
Regards, Giovanni Ciriani...
I've stumbled into think3 software (www.think3.com), and that company shows demos of parametric design, where the designer can easily modify the 3D. We use UG, and my chief designer tells me that UG can do the same. He also says that in our type of design (metallic watchbands, with up to 300...
I need a tip from a real elastomer experts!
I'm looking for an improved NBR (Acrylo-Nitrile Butadiene) for watchbands, that lasts longer than what is usually found in the market. I'm actually not sure if NBR is the best rubber around for this job, or if there are FKM-, EPDM-based compounds that...
I'm looking for an NBR-like o-ring to be used in a consumer-goods application. I'm confused by all the data sheets found in various sites, and I need some tip from elastomer experts.
Current need is for basic black color, but I will also need other colors, like red green, yellow, blue in future...
In mass deburring, I try to predict the stock loss I need, by using as a proxy the material ratio curve of the surface roughness (Abbott Firestone curve), or BAC. I correlate the material loss to an approximation of the area below the BAC by using the DIN roughness parameters: Rpk, Rk, Rvk, MR1...
I am evaluating the possibility of utilizing investment casting when more cost effective. My parts are AISI 316L for luxury accessories (watchbands) and are typically machined from profiles. Typical dimensions are 20x8x4 mm, with tolerances +/- 0.05 mm, and mirror-polish finish. I know this is...
Are there shortcomings when casting parts in 316L, as opposed to machining the parts from 316L bars (extruded profiles)?
I'm investigating the possibility, of casting our parts rather than obtaining them from CNC machining. Our product are luxury accessories made out of 316L SS: the parts are...
I need to minimize the etching effect on the surface of treated A316L, which is cleaned with various electrochemical processes.
I work on a new treatment for stainless steel used for luxury accessories (high-end watch bands). The standard steel (Aisi 316L) has a nickel content (12%) which...
I need to comprehend the reason for an unwanted yellowish appearance on stainless steel, and a cure for it.
I work on a new treatment for stainless steel used for luxury accessories (high-end watch bands). The standard steel (Aisi 316L) has a nickel content (12%) which imparts the material a...
I'm trying to comprehend the reason for an unwanted yellowish appearance on stainless steel, and a cure for it.
I work on a new treatment for stainless steel used for luxury accessories (high-end watch bands). The standard steel (Aisi 316L) has a nickel content (12%) which imparts the material...
I'm looking for a polymer to mask stainless steel jewelry, so that the steel can be mirror-polished according to a certain design.
We are thinking of plastic material, because harder materials would micro-scratch the steel, which is not allowed. The polymer has to be used more than once, so...
I have teflon-coated screws (stainless steel, diameter 1 mm) which locked up because of the spring effect of teflon on the threads. The screws are so tight that I need to soften the teflon before untightening. We tried already one and it damages the screw. What solvent do you recommend to this...
My subcontractor told me that after treating our parts, they clean them in EVA. It supposedly is a bath of some sort, and they won't tell me what it is. Has anyone of you heard of a chemical compound, liquid or solution with this acronym or initials?
In our production process, we wash stainless steel parts, protected with hair spray in a previous step. We have difficulty cleaning this hair spray, which contains Methacrylate. Sometimes it won't come off during the bath, but it comes off easily by hand cleaning with q-tips or soft cloth.
I'm...
I'm working with a supplier that Carburizes our 316L parts, to improve the surface finishing. The parts are mirror polished before the treatment (Pionite process by Air Water Ltd.), which is an S-phase carburizing. The steel increases its hardness from 250 Hv to about 800 Hv0.05 with a thickness...
Has anybody heard of a patent by Air Water Inc., Japan, to harden stainless steel 316L to 900 HV for a depth of about 20-30 micrometers? I am working with a subcontractor, but I'm having problems to eliminate defects, or crystal protrusion.
In previous thread342-23873 , Kenvlach mentioned that a "... process for hardening austenitic SS without loss of corrosion resistance was similar to the process TEV described". What is "the process TEV"?
