How do acrylic processing plants prevent cracking during drilling?

Dongguan Lingzhan Display boasts a professional team dedicated to R&D, production, and sales, capable of customizing various acrylic products according to client requirements. We encounter diverse challenges in our work. Below, we share practical methods for preventing acrylic cracking during drilling—a common concern among acrylic display rack manufacturers.

First, select a standard twist drill bit and sharpen it into a triple-pointed tip, with the central point slightly elevated. This configuration enables effective drilling into acrylic. Alternatively, use a hand-crank drill to apply consistent pressure, creating smaller holes beneath the glass surface to enhance structural integrity. Placing sand beneath the glass can also increase friction during drilling.

Cracking after drilling screw holes in acrylic typically results from improper operation. Acrylic has a significant thermal expansion coefficient—roughly nine times that of metal. Therefore, when drilling acrylic sheets, pay attention to expansion gaps: larger holes are needed; over-tightening screws can cause cracking; additionally, avoid drilling too close to edges.

Regarding bench drills: This method produces relatively standardized holes. Its drawbacks include limitations on drilling large or irregularly shaped holes, and positional constraints dictated by the drill's arm length. If your hole location on the sheet exceeds the arm's reach, drilling becomes impossible. For home environments, most households lack such machinery. However, neighbors might possess one, making access relatively easy.

Finally, avoid wiping the drilling area with alcohol. Selecting higher-quality acrylic sheets is the fundamental safeguard against cracking. For further inquiries, please visit our official website.