- 産業: Software
- Number of terms: 1241
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- Company Profile:
Moldflow develops plastic injection molding software.
Uni-directional flow is flow in one direction, with a straight flow front, during the filling phase. This is desirable because it improves the mechanical properties and quality of the part. Flow direction is determined by polymer injection location.
Industry:Software
Voids are caused by the plastic pulling away from the middle of the part as the molten plastic cools. The problem is material shrinkage during the cooling phase. Voids are a cosmetic defect if the part is transparent and can be a structural defect if the void is large.
Eliminate voids by using proper cavity pressurization in the packing phase.
Industry:Software
Warpage is a part defect caused by a non-uniform change of internal stresses.
Industry:Software
When a polymer flows through a large cross-section to a smaller one, it will extend longitudinally. This will result in a pressure drop that will be dependent upon the extensional viscosity of the particular material.
In practical injection molding situations, this pressure drop due to extensional effects is often seen when a material flows from a large runner into a very small gate. The change in cross-section is sudden and severe, resulting in a large pressure drop across the gate.
Industry:Software
When air is trapped within the cavity, for example, at the last point to fill in the mold or at weld lines, blackening or "dieseling" of the part can occur. Venting involves making a minor modification to the mold in the problem area so that entraped air can escape.
Industry:Software
When you mesh a model, model nodes are converted to mesh nodes and additional mesh nodes are generated. Mesh nodes are the vertices of Midplane, Fusion, and 3D mesh elements and the ends of beam elements. The graphic below shows mesh nodes at the vertices of a triangular element and a beam element.
When you run an analysis, certain results are recorded at mesh nodes.
Industry:Software
选定从一个阶段过渡到另一个，例如，从灌装阶段过渡到包装阶段。可以采用各种切换方法。例如，当注射时间或压力达到指定的值，当指定的百分比的卷被填满，或满足其他条件时，就可以启动填充到包切换。
Industry:Software
Design of Experiments (DOE) is an engineering method which determines which variables in your design have the most, and least, effect on final part quality. DOE also analyzes how part quality changes as input variables change. Engineers use DOE early in the design stage to improve designs.
Industry:Software
A volume mesh consists of solid, tetrahedral shaped mesh elements. Each tetrahedral element consists of four Midplane mesh elements joined to create a solid tetrahedron. Tetrahedral elements have four nodes, four faces and six edges and allow an accurate 3D flow simulation to be calculated.
Industry:Software
