Questions tagged [aluminum]

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3answers
61 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 ...
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0answers
15 views

Should I use ST or LT values for extruded rod?

In MMPDS for AA7075-73511 (extruded rod) the Table 3.7.10.0(g3) show both ST and LT values for transverse directions. For a rod with circular cross section there is really no Short and Long transverse ...
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2answers
33 views

What temperature required to alloy copper and aluminum?

According to this phase diagram, the melting point of 30% copper aluminum bronze is around 548°C. Lets say I create molten aluminum at 680°C, can I add small pellets of copper and swirl them around to ...
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2answers
54 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 ...
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1answer
47 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. ...
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0answers
33 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,...
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1answer
39 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 ...
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0answers
12 views

How to repair stripped, leaky pneumatic fitting?

I have a pneumatic cylinder with a stripped fitting, which causes a slow leak. I took it to a machine shop and he tried to re-thread it but there wasn't enough good metal left to get a good thread. He ...
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2answers
111 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 ...
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1answer
49 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 ...
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1answer
48 views

How to properly fit almuminum glass window without leakage?

I got a brick-wall house. The wall is 25cm thick. I want to add windows. There are 2 ways of adding a window: Adding the window on the inside side of the wall, so that if the aluminium frame of ...
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0answers
44 views

How do I to connect aluminium profiles with 60 and 120 degree angles?

I would like to construct an aluminium profile frame which includes connections with stiff fixed angles at 60 and 120 degrees. What options do exist for creating those connections, preferably without ...
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1answer
27 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 ...
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1answer
55 views

Mounting outdoors camera using aluminum 5052

I designed a simple U shape 2mm sheet metal bent mount for a 4kg outdoors CCTV camera. The mount was accidentally produced from 5052-H32 Aluminum instead of 6061-T6. Is it common to use 5052 ...
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1answer
67 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.
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0answers
31 views

How to produce aluminium powder by E. J. Hall method

I have watched videos on YouTube producing Aluminum powder by mechanical methods. Like this one. It uses Aluminum foil and coffee grinder: There are similar videos which use the same basic method but ...
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0answers
98 views

Building bed out of 8020 aluminium extrusion

I want to build a rock and roll bed out of 8020 aluminium extrusion, in order to avoid the bother of welding steel pipe. However, I don't have much of a 'feel' for how strong this stuff is. Will ...
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3answers
51 views

small relatively inexpensive crack detection apparatus for bike shops

Is there a relatively inexpensive (let's say under $500US) crack-detection device and related mobile app that would be easy enough for a non-engineer/non-metallurgist to use to determine whether a ...
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1answer
78 views

Tapped thread maximum load

I am building a stair from aluminium to go to my basement, the stair sides-plates are made from 10mm thick aluminium AWS 5454. I am planning to tap M10 thread into this plate. To avoid the step ...
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2answers
227 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 ...
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0answers
38 views

Small scale aluminium tubes manufacturing

Our startup needs short aluminuim tubes (max. ~70 cm [~27.5 inches] long / less than 1 cm / 0.4 inch diameter) such as these: We'd prefer to manufacture them ourselves rather than buy them from a s ...
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1answer
72 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?
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3answers
241 views

deformation / bending problem with anodized aluminium panels

I recently had a machine shop machine some aluminium panels (3mm thickness) which I then sent to an anodizing shop where the panels were bead blasted and anodized. When they came back they were ...
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4answers
6k views

Benefits and disadvantages of aluminium alloys as a replacement for structural steels in ships

My Answer. Benefits: The major advantage of aluminum in ship building is its strength to density ratio. Aluminum has high tensile strength with less weight, which results in lowering the weight of ...
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0answers
685 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 ...
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2answers
73 views

Stresses in a camera mount

I'm building a mount for a small IR sensor which will look very similar to this, minus the large camera. I am wondering whether or not it would be necessary to do calculations to ensure that the ...
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4answers
956 views

Brake pad materials for use against an aluminium surface [closed]

For a project that I am a part of, we are in need of a brake pad material for use against an aluminum surface without causing any damage to it. So far through my research, the only safe alternative ...
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1answer
114 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 (...
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1answer
262 views

Can I mig weld to my skateboard truck? How can I test if it's weldable?

I have this skateboard truck for my off-road skateboard. I want to mig weld a piece of aluminum to it to mount a motor. How would I test if it is something I can weld to with a MIG welder? I think it ...
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2answers
36 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 ...
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3answers
109 views

Fat hexagonal M3 nuts, with outer diameter greater than 6 mm

This is a follow on from my previous question, Will standard M5 T-slot nuts fit these different 2020 aluminium extrusions? The extrusion has this profile: and here is a more in-focus photo, of four, ...
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2answers
1k 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 ...
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1answer
128 views

Why does the Ultimaker 3D Printer has a Heater + Heater transfer plate (aluminium) + Glass?

Why does the Ultimaker 3D Printer has a Heater + Heater transfer plate (aluminium) + Glass? I wonder why a glass plate, and if is possible to remove the glass and print directly in the aluminium ...
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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 ...
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0answers
27 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 ...
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0answers
51 views

Countertop Span/sag Calculations [closed]

I came upon enough 3"x3" structural aluminum square tubing to build a countertop over the washer, dryer, and sink. I wanted to double check the sag/deflection of the tubing but am having trouble ...
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1answer
194 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 ...
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3answers
6k 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 ...
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2answers
6k views

What thickness of aluminium sheet do I need to achieve the same strength of a 1/8" steel sheet?

I want to use a boat with an aluminium hull. The authorities wants me to prove by calculation that the hull strength (longitudinal, lateral and local strength) equals at least the strength that would ...
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1answer
85 views

How is this aluminum heater mounted to the stainless plate?

I'm looking for a way to mount a 1000W electric heater to a stainless base. Electric kettle heaters could fit my requirements, but I'm wondering how the Aluminium heater is mounted to the stainless ...
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2answers
311 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 ...
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1answer
13k 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 ...
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1answer
7k 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 ...
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1answer
314 views

Aluminium brazing instructions: heat thoroughly to “open the pores” before tinning with rod

I have instructions for using aluminium brazing rod "HTS-2000". It says: Clean the area to be worked with a wire brush. Heat the work surface until it is hot enough to melt the rod. Open the pores ...
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0answers
102 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 ...
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1answer
2k 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 ...
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1answer
290 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 ...
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2answers
102 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 ...
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1answer
14k 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 ...
3
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1answer
65 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 ...