Machining Definition and 16 Threads

No Idea what I am expected to disclose here????

Hello all, we are working with some bismuth for a series of upcoming experiments and are trying to initially keep the purity high for better neutron activation measurements. Unfortunately there has been some difficulty with machining steps on the final pieces with chipping due to the material...

When drilling a thick peace of steel I noticed the drill bit would cut through much faster when it was cool. The difference was minutes versus seconds! Is this a known phenomena in machining or was my drill bit simply contaminated with something or maybe other factors played a role? I've heard...

Good afternoon people. Today I don't want to ask something related to electronics or mathematics, but rather on another subject. In this case is about machining (as well as making my own mechanical pieces). So what's the matter? You may ask. Well let me explain to you. In the last couple of...

I want to test the accuracy a linear displacement sensor (Hall effect) that I have, but I'm not sure what to measure it against. The sensors are made to measure with a resolution of 10μm. My initial thought was to use a drill press to move up and down, but I don't think I know of any that are...

Does Aluminum , after machining, continue to dimensionally change over time? A large (1000 mm x 500 mm x 300 mm ) aluminum casting is clamped and machined. Various large diameter hole and drilled. Faces are milled. The casting is stress relieved in the normal manner. Next the milled faces are...

Hi Guys Recently I have started a new hobby into RC planes. What I have noticed is extensive use of Carbon composites weight yet sturdy structures. Now the problem is that these structures seem to be cut (milling/drilling/laser cutting/water jet cutting) from a sheet (or laminates) of carbon...

Hi everyone, I need to calculate the force required for machining a circular tube of outer dia 32 and a wall thickness of 2.3, how much ll be the force required for the machining the outer dia to 25?

I graduated 18 months ago with my BSME degree and currently work full time as a Mech. Engineer. I enrolled in night school at a local community college to take a CNC machining certificate course this spring. The course is 2 semesters long and focuses on opereation of CNC equiptment mostly lathes...

how is rifling done? I've read it's done by broaching,but rifling is helical

Hello, I am working on a project, and I need to cut ~ 6 mm dia disks, and 3~4 mm thickness. The material is a composite made out of layered glassfiber. I am cutting those samples out of a 5 x 5 in composite. My question is what is the best, accurate, and affordable way to cut those samples...

Sorry for the title, I liked the pun. I would like to hear thoughts on anyone who has worked with Teflon either machining or for gasketing. I have never touched teflon aside from it being a coating but will get to machine and work with some this week. Most of the information I find online...

Just a quick question from a potential mech. engineering student. I'm probably going to start soon on my formal MechE classes soon but I know that to be a good engineer, you need to do more than get good grades. I've asked a lot of working MechEs about what you need to know, specifically if...

can anyone tell me what exactly a machining center is? from googling it i find lots of sites that are selling cnc machines.. can anyone give me a link that has detailed info about cncs their uses and purposes working etc..? any help will be appreciated thanks in advance

Please help me to calculate theoratical machining cycle time for the below mentioned operations: 1. Hobbing 2. Shaping 3. Shaving I need variious calculations involed in determining the theoratical cycle time. Please refer any website, if it can help me. Thanks, Rishi

I am currently investigating ways to make a mold for hot-embossing. Normally this is done by for instance SU8 on a silicon wafer, or DRIE of a silicon wafer. But my design is deeper than a normal wafer, around 5 mm deep. Because the devices are actually fairly large (for microsystems) I...