What are the advantages of servo water cutting machine used for cutting die pads and other soft materials?

The core advantages of servo water cutting machining tool die elastic pads (polyurethane, EVA, rubber) and soft materials are cold cutting without thermal damage, servo high precision without deformation, soft materials without pressure and tearing, edge without secondary processing, small batch irregular shape with high efficiency, energy saving, low noise and environmental protection.

First, cold cutting to preserve the elasticity and performance of materials

Heat-free zone: pure cold water jet cutting, no heat, no scorching, no melting, no hardening, no discoloration and no harmful gas.

Elasticity does not decay: the long-term resilience of the knife die spring pad (70 polyurethane) is stable, avoiding local hardening and rebound failure caused by laser/hot knife.

No degumming of adhesive: When the foam with adhesive is cut, the adhesive will not melt, migrate or fail.

Second, servo drive, high precision and stability, soft materials do not deform.

Servo accuracy: repeated positioning is ±0.025～±±0.05 mm, cutting accuracy is ±0.1 mm, and high order can reach 0.05 mm..

Non-contact cutting: no mechanical pressure, soft materials (EVA, rubber, foam) do not stretch, compress, wrinkle or tear.

Smooth motion: the servo motor has high response, low vibration and automatic resonance suppression, and there is no jitter and burr when cutting thin soft materials.

Good consistency: batch cutting of special-shaped spring pads (waves, gears, hollowing out), stable dimensional tolerance, uniform force on the knife die and few broken edges.

Third, the edge quality is excellent, and secondary processing is avoided.

The edge is smooth and burr-free: the incision is smooth, clean, without tearing and sticking, and the die spring pad does not need to be polished, so it can be directly put on the machine.

Vertical incision: pure water cuts soft materials, and the verticality of the incision is good, avoiding the bevel caused by compression and ensuring the die-cutting accuracy.

The micropore structure is complete: the internal pores of the foam do not collapse, and the cushioning and resilience properties are not damaged.

Fourth, the process is flexible, adapting to the knife die spring pad and soft material.

General material: easily cut polyurethane (PU), EVA, rubber, silica gel, foam, felt, cork, etc., with hardness of 5 ~ 90 Shore A..

Thickness adaptation: thin (0.5 mm) to thick (50 mm) soft material, once formed, without delamination and peeling.

High efficiency of special shape: CAD can draw directly without mold, and quickly switch special shapes (air holes, positioning grooves and special-shaped contours), with high efficiency of small batch/proofing.

Multi-layer cutting: it can be cut in multiple layers (such as EVA+adhesive+rubber composite), which improves efficiency and has no dislocation between layers.

V. Advantages of production and cost

Efficient and labor-saving: die making, edge grinding and deburring are omitted, and the efficiency is improved by 2 ~ 4 times compared with die cutting/punching.

High material utilization rate: servo precise control, tight typesetting, soft material utilization rate increased by 10 ~ 15%.

Prolonged service life of the die: accurate incision of the spring pad, uniform stress, less edge collapse of the die, and 2 ~ 3 times longer service life.

Energy saving, low noise and environmental protection: the servo direct-drive pump saves 30%+ energy, has no hydraulic oil, low noise (≤75 dB), 95%+ water recycling rate and no dust/waste gas.

Six, compared with the traditional process (die-cutting/punching/laser)

form

Comparison of traditional die-cutting/punching laser cutting of servo water cutting machine

Thermal damage is absent (scorching and hardening)

Soft wood has no deformation (non-contact) and is easy to stretch/compress, but it is thermally deformed.

Edge quality is smooth, no burr, easy to tear, raw edge coking and edge sticking.

No need to customize the mold, no need to customize the mold.

Low efficiency in small batch (long mold opening period)

Elasticity keeps good or bad.

summary

Servo water cutting machine is an ideal processing scheme for die pads and soft materials (polyurethane, EVA, rubber, etc.), especially suitable for special-shaped, high-precision, high-elasticity, small batch/proofing scenes, giving consideration to quality, efficiency and cost.