Man technology

Question 1

Runner

Answer 1

In manufacturing, a channel or passage in a mold through which molten material flows to reach the cavity where the final part or product is formed.

Question 2

Rake face

Answer 2

The surface of a cutting tool that faces the workpiece during machining, inclined to control the cutting action and chip formation.

Question 3

Thread stripping

Answer 3

Damage to the threads of a fastener during tightening, resulting in reduced holding strength or failure of the joint.

Question 4

Columnar grain

Answer 4

A microstructure with elongated grains perpendicular to the surface of a solidifying metal ingot or casting, affecting mechanical properties.

Question 5

Blanking

Answer 5

A process to cut flat shapes from sheet metal or other stock materials using a punch and die set in a single operation.

Question 6

Cold shots

Answer 6

Defects in a casting caused by solidified metal particles becoming trapped, resulting from improper gating or pouring practices.

Question 7

Cupola

Answer 7

A furnace for melting iron and other metals in foundry operations, typically fueled by coke or charcoal with air blown in for combustion.

Question 8

.STL file

Answer 8

A digital file format used in CAD and 3D printing, representing three-dimensional surface geometry as interconnected triangles.

Question 9

SCARA

Answer 9

A type of robotic arm used in assembly and packaging, with multiple joints designed for high-speed and precise horizontal movement.

Question 10

Ingot

Answer 10

A solid block of metal cast from molten material and used as raw material for further processing such as forging or rolling.

Question 11

Residual stress

Answer 11

Internal stress remaining in a material after the original cause has been removed, influencing mechanical behavior and stability.

Question 12

Wing nut

Answer 12

A fastener with two large wings allowing for hand tightening without tools, commonly used in applications requiring frequent adjustments.

Question 13

Six sigma

Answer 13

A methodology for process improvement and quality management aiming to minimize defects and variation using data-driven decision-making.

Question 14

Misrun

Answer 14

A casting defect where molten metal fails to fill the mold cavity completely, often due to inadequate pouring temperature or gating design.

Question 15

Composite sizing

Answer 15

A textile manufacturing process applying a protective coating or finish to yarns before weaving or knitting to improve handling and performance of the fabric.

Question 16

Cupola

Answer 16

A cupola is a type of furnace used for melting iron and other metals in foundry operations. It consists of a vertical cylindrical shaft lined with refractory material and is typically fueled by coke or charcoal, with air blown in to facilitate combustion.

Question 17

MEX

Answer 17

MEX stands for Manufacturing Execution System, a computerized system used in manufacturing to track and manage production processes, monitor equipment performance, and collect real-time data for analysis and decision-making.

Question 18

Cold Shot

Answer 18

Cold shots are defects in a casting caused by solidified metal particles or droplets becoming trapped in the final product. They can result from improper gating or pouring practices during the casting process and may lead to surface irregularities or weak spots.

Question 19

CNC

Answer 19

CNC stands for Computer Numerical Control, a technology that automates machine tools and equipment using computer programming to control their operation. It allows for precise and efficient machining of complex shapes and parts in various manufacturing processes.

Question 20

CoBot

Answer 20

CoBot, short for Collaborative Robot, refers to a type of robot designed to work alongside humans in a shared workspace safely. These robots are equipped with sensors and advanced control systems to detect and respond to human presence, enabling close collaboration and increased flexibility in manufacturing tasks.

Question 21

Composite sizing

Answer 21

Composite sizing is a process used in textile manufacturing to apply a protective coating or finish to yarns or fibers before they are woven or knitted into fabric. It helps to improve the handling characteristics, strength, and durability of the yarns and enhance the performance of the final textile product.

Question 22

Spring washer

Answer 22

A spring washer, also known as a disc spring or Belleville washer, is a type of washer with a convex shape that exerts spring force when compressed. It is used to prevent loosening or absorb shock in bolted joints, providing a more secure and reliable connection.

Question 23

Ply

Answer 23

In materials and composites, a ply refers to a single layer of material, such as fabric or resin-impregnated fiber, used in the construction of laminated structures. Multiple plies are stacked and bonded together to form a composite material with specific strength, stiffness, and other properties.

Question 24

End milling

Answer 24

End milling is a machining process used to cut slots, pockets, and other features in a workpiece using a rotating cutting tool with multiple flutes or edges. The tool is lowered into the workpiece at an angle perpendicular to the surface, removing material in successive passes to achieve the desired shape.

Question 25

Sustainability

Answer 25

Sustainability refers to the ability to meet the needs of the present without compromising the ability of future generations to meet their own needs. In manufacturing, sustainability involves minimizing environmental impact, conserving resources, promoting social responsibility, and ensuring long-term economic viability throughout the product lifecycle.

Question 26

Ironing

Answer 26

Ironing is a metalworking process used to improve the surface finish and dimensional accuracy of a stamped or formed part by applying pressure and sliding it over a die or mandrel. It smoothens the surface, reduces surface roughness, and can also increase the part's thickness uniformity.

Question 27

Quality

Answer 27

Quality in manufacturing refers to the degree to which a product or process meets specified requirements and satisfies customer expectations. It encompasses factors such as performance, reliability, durability, safety, and consistency, achieved through effective quality management systems and continuous improvement efforts.

Question 28

Artefact

Answer 28

An artifact, often spelled as "artifact," refers to any object or material created or modified by human activity, especially one of historical or cultural significance. In manufacturing and engineering, artifacts can also refer to unintended or anomalous features or signals in data or measurements, resulting from errors or interference during the measurement process

Question 29

Sprue

Answer 29

In casting, a sprue refers to the channel through which molten metal is poured into the mold cavity. It allows for the flow of metal and helps to distribute it evenly throughout the mold to form the desired shape.

Question 30

Relief angle

Answer 30

The relief angle is the angle ground on the cutting tool behind the cutting edge. It provides clearance between the tool and the workpiece, reducing friction and preventing rubbing or binding during machining.

Question 31

Thread stripping

Answer 31

Thread stripping occurs when the threads of a fastener, such as a bolt or screw, become damaged or stripped during tightening. This can happen due to excessive torque or improper threading engagement, resulting in reduced holding strength or failure of the joint.

Question 32

Yield

Answer 32

Yield, in manufacturing and materials science, refers to the amount of usable product obtained from a manufacturing process or the proportion of material that can undergo plastic deformation before failure. It is often expressed as a percentage.

Question 33

Datum

Answer 33

In engineering and metrology, a datum is a reference point or surface used as a basis for measurements or geometric dimensioning and tolerancing (GD&T). It serves as a fixed starting point for establishing the orientation, location, and tolerances of features on a part or assembly.

Question 34

Cold shut

Answer 34

A cold shut is a casting defect characterized by an incomplete fusion of molten metal during solidification, resulting in a discontinuity or weak spot in the final product. It can occur when two streams of molten metal fail to fuse properly due to insufficient heat or turbulence.

Question 35

CNC

Answer 35

CNC stands for Computer Numerical Control, a technology that automates machine tools and equipment using computer programming to control their operation. It allows for precise and efficient machining of complex shapes and parts in various manufacturing processes.

Question 36

EOAT

Answer 36

EOAT stands for End-of-Arm Tooling, referring to the specialized tooling or devices attached to the end of a robotic arm or manipulator in automation applications. EOAT is designed to perform specific tasks such as gripping, picking, placing, or manipulating objects in manufacturing and assembly processes.

Question 37

Swarf

Answer 37

Swarf, also known as chips or filings, refers to the waste material produced during machining operations such as milling, turning, or drilling. It consists of small, curled metal shavings or particles that are removed from the workpiece by the cutting tool.

Question 38

Composite laminate

Answer 38

A composite laminate is a material made by bonding together multiple layers or plies of different materials, such as fibers, resins, or metals, to create a single integrated structure with enhanced mechanical properties. It is commonly used in aerospace, automotive, and construction applications for its high strength-to-weight ratio and other desirable characteristics.

Question 39

Washer

Answer 39

A washer is a thin, flat disk with a central hole used to distribute the load of a threaded fastener, such as a bolt or nut, over a larger area and prevent damage to the surface of the connected parts. It helps to reduce friction, provide a smooth bearing surface, and improve the integrity of the joint.

Question 40

Lean

Answer 40

Lean manufacturing, often referred to simply as lean, is a systematic approach to eliminating waste and optimizing processes in manufacturing to improve efficiency, reduce costs, and increase customer satisfaction. It emphasizes continuous improvement, respect for people, and the elimination of non-value-added activities.

Question 41

Composite sizing

Answer 41

Composite sizing is a process used in textile manufacturing to apply a protective coating or finish to yarns or fibers before they are woven or knitted into fabric. It helps to improve the handling characteristics, strength, and durability of the yarns and enhance the performance of the final textile product.