Questions tagged [aluminum]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
14
votes
4answers
2k views

In aluminum machining, what are the most common factors that might cause a machined component to have warping issues?

I am currently having an issue where features of my machined parts are warping. I am using Alloy 7050 Type I and Type III in this particular case. Using a feeler gauge and a certified, calibrated ...
11
votes
9answers
2k views

Aluminum weight saving

"Aluminum saves weight! Its 3 times lighter than steel!" Also its 3 times weaker and 3 times softer. When comparing stiffness and strenght to weight ratio, aluminum isnt any better than ...
8
votes
3answers
9k views

What method can I use to make a pivot point in an aluminum linkage?

I recently had a project where I made an aluminum linkage (similar to a scissor lift) operated by linear actuators. Aluminum pieces were fabricated from 6061 "standard" aluminum stock, 6mm (0.25 inch) ...
7
votes
7answers
2k views

Why do manufacturers still make aluminum kitchen utensils?

I noticed many kitchen utensils or stand mixer attachments are made with injected aluminum. Aluminum (~\$20/kg) is usually more expensive than stainless steel (~\$10/kg) and is not compatible with ...
6
votes
1answer
3k views

Strength of a Vertical Round Aluminum Tube with load cantilevered off it?

Can a vertical round tube safely support a cantilevered arm mounted near the top of the tube? ROUND VERTICAL TUBE: 6061 Aluminum 2 inch Outside diameter 0.25 inch wall thickness 3 feet height ...
5
votes
2answers
7k views

What is the opposite of flaring a tube (pinching?) and is there a tool to do this with aluminum?

I'd like to make my own structure that will hold roughly 50-100lbs of equipment. Since I need this to be portable, I feel like aluminum tubing would be the most practical. My structure will ...
5
votes
1answer
355 views

Cantilever Table Legs

I am building a table with four legs which must support a dead weight of 250 kg, and possible peak dynamic load of 1000 kg (A 200 kg person climbs onto and off of it). The legs come straight down ...
5
votes
1answer
9k views

Aluminum vs Steel rivets/fasteners in a high vibration environment

What are the relative pros and cons between aluminum and steel fasteners when riveting together sheet aluminum (50XX or 60XX) when high amounts of vibration are anticipated? Assuming that the usual ...
4
votes
1answer
902 views

Is stress relieving by stretching necessary when performing a T751 heat treatment after a T651?

We have a 7075 Al pump housing that has currently undergone a T651 temper but requires a T751 treatment to alleviate stress corrosion cracking. Is it necessary to re-stretch a 7075 aluminum part to ...
3
votes
6answers
2k views

Can aluminium foil be a thermal insulator?

I've searched on Google that aluminium foil can be a thermal insulator, but how does it work? From my thought process, it should've been a conductor because its a metal, right? But, some said that ...
3
votes
3answers
8k views

Can steel be replaced with aluminum alloy in reinforced concrete?

Can aluminum alloy be an alternative to steel for reinforcement in terms of the same forces encountered by reinforced concrete beams? Will it be economical and feasible? Are there organizations who ...
3
votes
2answers
297 views

Intuition vs software results

I've recently designed what is essentially an aluminium box. I've done the entire design process of CAD software SolidWorks and then done some simulations of loading of the box. Through iterations I'...
3
votes
1answer
19k views

How much weight can an aluminum tube beam support?

I'm building a set of monkey bars for my kids and want to use aluminum tubing (6061 T6) for the rungs. The tubes will be 3 feet long and 1 inch outside diameter. Supported on both ends with a circular ...
3
votes
2answers
115 views

Aluminum for an Ejection Seat Replica

I love ejection seats and the flying contraptions they usually reside in. In fact, I like them so much that I want to make my own, despite my profound lack of training and inexperience with ...
3
votes
1answer
363 views

Rivet pattern management in Fusion 360

As a follow up to this question, I have a question about rivet hole management in Autodesk Fusion 360. I've got two pieces, a flat sheet of aluminum and an inverted hat channel that I want to rivet ...
3
votes
1answer
2k views

How to do gold plating on Anodized aluminum and stainless steel?

I have done some research and asked in a few forums for gold plating on anodized aluminum and stainless steel but haven't yet found the answer to my questions. What are the chemicals for pre-...
3
votes
3answers
74 views

Shade tree engineer needs help calculating hoop stress

I have an extruded aluminum tube. I'm trying to come up with an Excel calculator that will help me find out how much force would be exerted on the internal walls if the tube was filled with rubber, ...
3
votes
1answer
69 views

Placing machine visions targets with high accuracy

My company is working on a machine vision application. One of our requirements is that the camera peer through a frame (like a picture frame - see here ), where the top and bottom border are etched ...
3
votes
0answers
107 views

Is having a keyway in aluminium for 30Nm a bad idea?

I'm designing an aluminium shaft hub for a 16mm keyed shaft with a maximum torque of 30Nm. However, stress analysis tells me that the keyway can suffer too much stress: If my understanding is correct,...
2
votes
2answers
130 views

What is the manufacturing method used to make aluminium C channel

I don't know how this is made and I don't know the name of the method to search for it to learn more.
2
votes
1answer
1k views

How can dross/slag formation be reduced during aluminum recycling?

I have a furnace for aluminum recycling wherein dross formation is a major issue. It reduces the yield by about 10-12%. I am looking for a change in process parameters or other solutions through which ...
2
votes
1answer
78 views

Why are aluminum tubes folded at the end

I've noticed that aluminum squeeze tubes have a fold at the end. The fold is not the seal of the tube, as I can unfold and see the seal on the very end of the tube once unfolded. Wikipedia states that ...
2
votes
2answers
174 views

How can I square off a piece of aluminum bar after cutting without a milling machine?

When I cut aluminum bar or t-slot extrusion on my bandsaw I am not happy with how "square" this edge is. I don't have a milling machine at home, and I have been told grinding aluminum is a very bad ...
2
votes
2answers
81 views

Creating strongest possible sectional aluminum round tube

I want to attach a mast and sail to a dinghy. The mast length would be 10.5 feet tall to accommodate a 20-22 sq ft sail, but for transportation purpose would need to be collapsible into at least two ...
2
votes
2answers
265 views

Natural age hardening of aluminium 6082-t6

I've been looking at using Aluminium 6082-T6 structures in impact energy absorption mechanisms. I planned to do some material testing, made specimens for testing then was distracted with another ...
2
votes
1answer
16k views

Calculate Weight Bearing Capacity [closed]

How can i calculate the weight bearing capacity of a section of aluminium box section? Known variables of section: Dimension, thickness, distance from load and supports. A pictorial example might ...
2
votes
2answers
291 views

Furnace for aluminum alloy creation

What kind of furnace is used to create alloys for aluminum die casting? I have only been able to find information about how to create alloys or how to process them afterwards in the die casting ...
2
votes
1answer
2k views

Will standard M5 T-slot nuts fit these different 2020 aluminium extrusions?

I am trying to source the parts for a Wilson II 3D printer, and the recommended struts are made from 2020 aluminium extrusions, like so: However, in Bangkok, I can only find this type: Note that the ...
2
votes
1answer
148 views

Lightweight substitutes for machined aluminum parts

I have machined parts that are made of aluminum and anodized black. The reason that I chose aluminum is because: It can easily be machined and is low cost and is common, so easy to buy It is light ...
2
votes
2answers
168 views

Buffing/Polishing bulk Aluminum

I'm buffing the years of built up dirt off a aluminum grain tipper trailer, using a woolen buffing pad mounted on a angle grinder. I'm going in a upwards & downwards motion with great success, ...
2
votes
2answers
1k views

How to straighten an aluminium extrusion?

The extrusion shape is a simple square tube. If I set it down on a perfectly flat surface with its curvature upwards, the middle raises up by around 5mm over the length of 1m. So far I tried to just ...
2
votes
1answer
129 views

Aluminum sliding mechanism clamping

I have an O-shaped aluminum (7075) profile WxDxH - 40mm x 200mm x 25mm The inner channel is 20 mm wide and 10 mm deep - runs through the entire length of the bar. Inside, I have a 20 mm x 10 mm bar (...
2
votes
0answers
29 views

Aluminium plate being used in an AUV

I am currently using a AI-6061-T6 plate measuring 750mmx370mmx6mm as a rack between two frames at about 3/4 meter above ground. The load on the plate would be about 8-12kg. How much load will be able ...
2
votes
0answers
106 views

Standard parameters for machining aluminium?

Sorry for the weird question but I was wondering about the standard machining parameters for Aluminium (if there is even a standard). Particularly the values for a CNC process (preferably in SI) for a ...
1
vote
1answer
107 views

Is welding aluminum a good choice?

I am making an aluminum part with a sort of a built in pipeline where water runs to cool the system. To close and seal the "pipe" I would need a lot (at least 144!)screws and two very long (...
1
vote
4answers
788 views

Aluminum square tubing capacity question

I have an awning that I am attaching to the corner of the house. I needed to extend it so I got a piece of 6063 square aluminum tubing. It's 1 inch wide with .125 wall thickness. It has about 2 feet ...
1
vote
1answer
112 views

Aluminium Bolt in Titanium Casing: Any Dangers of (Contact-)Corrosion?

Assumed we have a fuel flask that is made of titanium. The bottle will be filled with white gasoline when used. At the bottleneck there is a standardized thread manufactured into the titanium. Are ...
1
vote
1answer
91 views

What thickness do I need for a 30x30 (cm) aluminium plate to hold 350Kg on three points?

I want to make a strong connected weight-scale Arduino project, for which I already own 3×350Kg sensors (red). I plan to make the plate (green) around 30cm×30cm in 99.5 Brut aluminum, with my three ...
1
vote
1answer
115 views

Is it possible to replicate a motorcycle engine cylinder head?

Is it possible to create a mold of an aluminium motorcycle cylinder head so that you can create an exact replica with melted aluminium?
1
vote
1answer
59 views

What aluminum grade is the most resistant to corrosion in alkaline environment?

Quick google search will return either 6000 series (6061 more specifically), or 3003 However with so many option and each having it's own benefit, I still haven't make my decision What I am looking ...
1
vote
2answers
2k views

Pouring aluminum into another block of Aluminum

I have a 120mmx120mm brushless fan with an Aluminum frame, which as you can imagine, isn't very thick. I want to thread the base, so I can mount it with a fairly large screw. For that I need to add ...
1
vote
2answers
533 views

Heat Fit Aluminum Sleve onto Shaft

IANAE I want to make an 1/8" steel rotary switch shaft into 1/4" so that it will accept the much more common 1/4" shaft knobs. If I use McMaster-Carr 92510A422: which is an aluminum unthreaded ...
1
vote
2answers
43 views

Feasibility of reconstituting existing 5083 Aluminium

Can I melt 5083 aluminium and then reconstitution into a mould. I would like to know if it is possible to melt down existing 5083 aluminium lp and then pour the molten liquid into a yacht mould of 6mm ...
1
vote
2answers
405 views

How much deflection can/should I accept with Aluminum Extrusions?

I plan building things with aluminum extrusions. On this website I can calculate the deflection depending on the profile length and load. https://8020.net/deflection-calculator I.e. if I select a 20/...
1
vote
1answer
57 views

What is the purpose of the steel plate in this coupler?

I've found a shaft coupler that has a steel plate in between, but it's not clear what its function is: If it is to add strength to the coupler, isn't the coupler as strong as the weakest link, i.e. ...
1
vote
2answers
574 views

Calculating tensile strength for aluminium

I'm making a Z (coffee table) linkage with two interlocking C channels and a couple of steel linkage bars. While moving, they aren't load bearing but when extended, they will take a weight of around ...
1
vote
3answers
444 views

How can I calculate "bendability" of aluminium tubes?

Disclaimer: sadly not an engineer (I hope this is the right place for such my question. Please let me know if it isn't). I'm designing a tent. I know most of the dimensions of the first prototype I ...
1
vote
2answers
42 views

How to duplicate measurements from one piece of material to another?

I am not sure if this is the right place to ask this but. I have an offroad skateboard from MBS. I bought their brake system which comes with a circular piece of aluminum. Pictures attached. You can ...
1
vote
2answers
45 views

Software for designing products made of aluminum extrusions

I'm going to build a storage cabinet out of aluminum extrusions. Something that looks like that, except lighter and less intricate: So yeah, my cabinet will be a lot lighter and without moving parts. ...
1
vote
1answer
37 views

Is there any way to improve the strength of simple at-home aluminum/copper/brass castings (sand-casting hammers)

I'm just getting-into melting-down cans to make aluminum-based slingshots, hammers and the like. In my ignorance I didn't realize that copper/brass were also things that I could process which has ...