Inside bend radii for various grades of sheet aluminum
Inside bend radii for various grades of sheet aluminum
(OP)
Folks-
I'm in the process of writing a drafting/design manual for our department and need to provide minimum inside bend radii for various grades of sheet aluminum. Can anyone provide a list of reasonable guidelines for 5052-H32 and 6061-T6? If you have guidelines for other alloys that would be helpful. By the way, I know that the Aluminum Association provides values but these values are so conservative that they do not fairly represent what the industry can produce. Please group in order of Difficult, Moderate, and Easy and assume the manufacturer has modern equipment. Please provide tolerances as applicable. Thanks in advance for your valued inputs!
I'm in the process of writing a drafting/design manual for our department and need to provide minimum inside bend radii for various grades of sheet aluminum. Can anyone provide a list of reasonable guidelines for 5052-H32 and 6061-T6? If you have guidelines for other alloys that would be helpful. By the way, I know that the Aluminum Association provides values but these values are so conservative that they do not fairly represent what the industry can produce. Please group in order of Difficult, Moderate, and Easy and assume the manufacturer has modern equipment. Please provide tolerances as applicable. Thanks in advance for your valued inputs!
Tunalover





RE: Inside bend radii for various grades of sheet aluminum
RE: Inside bend radii for various grades of sheet aluminum
Approx Radii for 90deg Cold bends in Aluminum alloys
Sheet Thickness
0.016 0.032 0.064 0.128 0.183
5052-H32 0 0 0 0 0T-1T
5052-H34 0 0 0T-1T 1/2T-1-1/2T 1-/2T-3T
6061-T6& 0T-1T 1/2T-1-1/2T 1T-2T 1-/2T-3T 2T-4T
5052-H36
There is more but it'll cost ya. Actually an answer to the following will suffice:
Is this any less conservative than Aluminum Association? How about providing the full link so I can compare for my edification?
RE: Inside bend radii for various grades of sheet aluminum
Additionally:
5052-H32 has a better rating for workability (cold) than 6061-T6
6061-T6 has better rating for machineability than 5052-H32
All the posted data on bending assumes, as you have stated, on having modern well kept equipment and dies.
The final judgement on alloy in respect to forming is determined by a trial run on the actual equipment to be used.
RE: Inside bend radii for various grades of sheet aluminum
Tunalover
RE: Inside bend radii for various grades of sheet aluminum
Sheet Thickness
0.016 0.020 0.025 0.032 0.040
Alloy Temper Minimum Bend Radius
2024 O 0.03 0.030 0.06 0.06 0.060
T3, T4 0.06 0.060 0.09 0.13 0.130
2524 T3 Same as 2024-O
6061 O 0.03 0.060 0.06 0.06 0.060
T6 0.06 0.060 0.09 0.13 0.130
7075 O 0.03 0.060 0.06 0.06 0.090
T76 0.06 0.090 0.13 0.16 0.220
0.050 0.063 0.071 0.080 0.090 0.100
0.090 0.13 0.13 0.130 0.130 0.160
0.160 0.22 0.25 0.280 0.360 0.410
0.090 0.13 0.13 0.130 0.130 0.160
0.160 0.22 0.25 0.280 0.310 0.380
0.130 0.13 0.16 0.190 0.190 0.220
0.250 0.31 0.38 0.410 0.470 0.560
RE: Inside bend radii for various grades of sheet aluminum
The Aluminum Association data is not available on-line. Thanks for your help, though!
Tunalover
RE: Inside bend radii for various grades of sheet aluminum
Sincerely yours,
Leslie H. Howell
RE: Inside bend radii for various grades of sheet aluminum
go on the net look for l.v.d.uk in banbury, they are press brake and punch machine engineers manufacturers.they will give you the radius you require.