Cold-weld Burr Removal System Using Shearing Force

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Solution Overview

Problem

Cold-welding processes produce excess material in the form of cold-weld burrs, which can be hazardous and hinder efficient storage due to their sharp edges and increased width, necessitating an effective removal method.

Innovation Solution

A cold-weld burr removal system comprising a clamping block, a removal block, a cutting head insert, and a linear actuator, where the cutting head insert with a cutting edge removes the burr via a shearing force while the rod remains stationary, and the burr is collected in a burr collector.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If cold welding is performed to join metal parts, then the parts are bonded together through compression, but cold-weld burrs are produced that create safety hazards and storage inefficiency

Engineering Contradiction:
Improvejoint strengthVSAvoidsafety hazard from sharp burr edges
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and removes the harmful cold-weld burr from the rod surface using a cutting head that applies a shearing force to separate the burr material from the base metal, thereby eliminating the safety hazard while preserving the joint strength

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cutting head applies a localized shearing force only to the burr region rather than the entire rod, selectively removing the harmful sharp edges while leaving the rest of the rod and its cold-weld joint intact and undamaged

Inventive Principle:
Principle #3Local quality

2Shape

If cold-weld burrs are not removed, then the rod maintains its original dimensions, but storage efficiency is reduced due to increased width from protruding burrs

Engineering Contradiction:
Improverod dimensionsVSAvoidstorage efficiency
Core Design Contradiction:
ShapeVSProductivity

Solution Approach 1:

The cutting head removes the protruding burr material that causes increased rod width, restoring the rod to its original dimensional profile and enabling more compact, efficient storage arrangements

Inventive Principle:
Principle #2Taking out (Extraction)

3Object-generated harmful factors

If a cutting head is used to remove burrs, then burr removal is achieved, but the system complexity increases with multiple components

Engineering Contradiction:
Improveburr removal effectivenessVSAvoidsystem component count
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The cutting head is integrated with the existing cold-welding apparatus, combining the burr removal function with the joint formation process in a single integrated system rather than requiring a separate standalone burr removal device

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cutting head serves multiple functions: it removes cold-weld burrs, maintains rod dimensional accuracy, and can be applied to various rod sizes and materials, providing a versatile solution that justifies the added component

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system safely and efficiently separates and removes cold-weld burrs, enhancing safety and allowing for more compact storage by eliminating hazardous edges and excess material.

Implementation Method 1

The cutting edge can remove at least some of the cold-weld burr from the rod via a shearing force that is created when the removal block moves away from the clamping block via the linear actuator

Methodology Applied
Scientific EffectShearing force: Shear Stress

Data Source

PatentUS10828710B1Cold-weld burr removal
Publication Date: 2020.11.10 SOUTHWIRE CO LLC
  • US10828710B1 patent drawing
  • US10828710B1 patent drawing
  • US10828710B1 patent drawing

AI summary

A cold-weld burr removal system is disclosed according to various embodiments. The cold-weld burr removal system can include a clamping block having a clamping passage that extends along an alignment axis, and a removal block having a guide passage alignment axis centered about the alignment axis. The removal block can define a burr receiving chamber. The system also can include a cutting head insert having a cutting portion and a cutting passage. The cutting head insert can removably attach to the removal block and the cutting portion can protrude into the burr receiving chamber. The system can include a linear actuator that connects the clamping block to the removal block. The linear actuator can move the removal block in a direction along the alignment axis to increase a separation distance between the clamping block and the removal block when a linear actuation initiator initiates movement of the linear actuator.