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Automotive Front Bumper Side Bracket

A precision injection-molding project that improved positional accuracy at critical inspection points—delivered on schedule and trialed ahead of plan.

Project Background

Reliable support for a front bumper system

Livepoint was engaged to develop an automotive front bumper side fixing bracket used to support and position the front bumper assembly. The project required a stable molding solution for a glass-fiber-reinforced polypropylene component, with dimensional performance verified by inspection fixtures.

The objective: deliver a production-ready bracket whose critical hole positions meet fixture inspection requirements, while protecting the program timeline.

Industry:

Automotive

Product:

Front Bumper Side Fixing Bracket

Services Provided:

Mold design, manufacturing & trial molding

Technology:

Liquid injection molding, complex silicone & plastic channels

Materials:

PP + GF10%

Project Cycle:

90 days to mold trial

Project Gallery

Designed for accurate, repeatable production

Automotive Front Bumper Side Bracket 04

The Challenge

Hole positional accuracy did not pass fixture inspection

The system needed to deliver uniform 3mm droplets that mimic natural rainfall, which demanded exceptional precision in mold injection to control droplet size, flow rates, and water distribution.

The components themselves were intricate and diverse, including UV-resistant housings, precision regulators, flexible silicone channels, and leak-proof seals.

Additionally, it required materials and molds capable of withstanding outdoor environmental stresses, including high UV exposure, pressure fluctuations, and repeated use.

Critical inspection points

Hole locations are essential to the bracket’s fit and to secure the bumper assembly correctly.

Fast correction required

Any tool adjustment had to be efficient, controlled and compatible with the planned trial schedule.

Automotive consistency

The PP + GF10% component required robust processing to keep performance stable through repeated molding cycles.

Our Solution

Correction capability built into the tool from the start

Livepoint simplified the parting design and optimized the machining process to identify product risks early. The mold design incorporated replaceable core pins and inserts, enabling targeted, rapid correction of the critical hole positions during tool development.

Replaceable core pins

Core-pin replacement was included in the early mold design so critical hole geometry could be refined without extensive rework.

Quick insert adjustment

Modular inserts made it possible to correct dimensional deviations rapidly and precisely during the trial stage.

Simplified parting design

A cleaner parting strategy reduced complexity, supported efficient machining and improved tool maintainability.

Preventive risk control

Potential product issues were reviewed before trial, reducing avoidable iteration and protecting the overall program.

Project Result

Delivered on time—mold trial completed ahead of schedule

90 days

To mold trial

The project reached the mold-trial milestone within the planned 90-day cycle.

Ahead

Of planned trial timing

Design simplification and optimized machining enabled the mold trial to be completed early.

Built-in

Correction flexibility

Replaceable pins and inserts provided a practical route to rapidly correct hole-position issues.

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