Method for production of sandwich panels with zigzag corrugated core
A zigzag and plywood technology is applied in the field of producing plywood with a twisted and wrinkled core, which can solve the problems of reduced strength of the plywood, affecting the strength of the core-skin connection, unfavorable deformation conditions, etc., and achieves the effect of improving product quality.
Image
Examples
Embodiment Construction
[0016] Our method can be implemented in the following way:
[0017] 1) manufacture the outer skin and inner skin 1 of the splint;
[0018] 2) Draw the bending lines 3, 4, 5 on the chip blank 6 of the core 2; the parameters and relative positions of the bending lines 3, 4, 5 are related to the design parameters of the core 2:
[0019] L d =f(H,L); V d =f(V, L d );S d =f(V,S,H,L),
[0020] where H is the height of the zigzag folds, V is the amplitude of the zigzag lines, 2S is the step between the zigzag lines, 2L is the step between the zigzag lines, with the dimensions unfolded: 2S d is the step distance between the zigzag lines, L d is the distance between the meander lines, V d is the magnitude of the meander line;
[0021] 3) Punch holes 7 in the blank at the intersection of the zigzag line 5 and the meander lines 3, 4; the diameter of these holes 7 is d h ≥R b , where R b is the bend radius of the chip blank at the intersection of the jagged line 5 and the meand...
PUM
Login to View More Abstract
Description
Claims
Application Information
- IPC
- B21D47/00; B32B3/28; E04C2/34; B21D47/04
- CPC
- Y10T428/1234; Y10T29/49995; B21D47/00; Y10T29/49623; Y10T29/49629; Y10T29/49627; B32B3/28; B32B2605/18
- Inventors
- N·I·阿基舍夫; I·M·扎基罗夫