New Method of Analyzing Adhesion/Friction in Resin-molded Structures and its Application to Insulated Rods

Abstract

The forces working at the contact interface between the metal and resin of a resin mold, which was made of metal cylinders covered with resin mold, were experimentally investigated. The forces discussed in this paper were modeled by friction force, adhesive force, and contact pressure based on residual stress. A new coefficient for adhesion was introduced by describing adhesion force. Moreover, FEM model of the forces acting on the contact interface was developed. The excellent agreement between the calculated and measured forces in applying the model to the design of an actual industrial product, i.e., an insulated rod, verified its accuracy.

Evaluating Strength of Adhesive Interface between Ceramic and Resin in Resin-Molded Structures

“…does not contain the influence of the pressure force due to the residual stress, and is obtained as 16 kN/53 kN = 0.3. This value is smaller than the adhesion strength index 0.55 (10) between copper and resin. From the photograph of the test piece taken after examination, shown in Fig.…”

“…In the previous study (10)- (11) , the adhesion strength of the interface between a ceramic surface and a resin was investigated with an interface strength evaluation method using the adhesion strength index (μ + B) that has been applied to interfacial debonding experiments between an epoxy resin and insert metals.…”

“…In our previous paper (10)- (11) , the adhesion strength index (μ + B) (10) , expressed in terms of the adhesion coefficient B and the friction coefficient μ, was proposed for evaluations of interfacial debonding experiments between metals (copper, stainless steel, and aluminum) and resins, where the adhesion characteristic of the interface was considered.…”

Atomic-Level Modelling for Predicting Interface Strength in Resin Molded Structures

“…In our previous paper, we reported an experimental investigation of the mechanical strength of metal-resin interfaces in resin molded structures (3) . We evaluated the interface strength of resin molded products by using a finite-element model with the adhesion characteristics of the interface measured by experiments; we showed that the experimental method is effective in determining the interface strength.…”

“…Thus, to improve the elect an appropriate insert-metal ently, we present a technique to molecular-dynamics calculations reover, we applied the proposed n and insert metals and showed with the adhesion-strength index Molded Structure (3) sin interaction by measuring the object that we fabricated. In this cular-dynamics calculations, we vious study by taking account of sin test piece for the interface he metallic mold, a metallic pillar as inserted, liquefied epoxy resin , as shown in Fig.…”