Vertical milling machine
A vertical milling machine is a machine tool used to machine solid materials.
The term vertical refers to the orientation of the main spindle. The spindle can generally be
extended (or the table can be raised/lowered,
Compressive Strength with example from Table 1, Trial 7:
Compressive Strength( )=
Mean Compressive Strength with example from Table 2, calculating the mean compressive
strength of parallel loaded maple wood blocks:
Construction aggregates plays a vital role in concrete and asphalt assembly, as they make up about 7080% of Portland concretes and about 90% of asphalt concretes. They have a variety of use in construction
such as transportation infrastructu
The main aim of the concrete lab is to compare the durability of fresh concrete properties along
with the determination of the hardened concrete properties that are prepared at different water to
cement ratios (specifically at 0.4, 0.55 and
Concrete Mix Design
In this lab report, the concrete created is in an unsaturated condition used for the exterior of
buildings that are exposed to freeze-thaw conditions, with no exposure to chloride attack.
Readings and calculations taken from the lab:
NUMERICAL CONTROL: CNC MACHINES PART.2
1) Unit costs and tooling costs are lower: mass production using transfer
machines, multi spindle machines.
Setup fixtures are greatly simplified because short runs can be cut from
solid materials. Pe
Used to cut smooth parts or make threads on a work piece.
Runs at difference speeds (rpm)
Feed is how fast you want the leading screw to advance each turn.
Fast feed gives a rough cut.
Slow feed gives a nice finish.
Headstock: non-moving part of the
Horizontal Milling Machine
The spindle is in the horizontal axis
Types of milling machines:
Bed type: position of spindle changes, table is fixed
Knee and column: Table is mobile and moves by screw and nut, backlash is a
problem on this type, so some have
Grinding is one of the few operations that can be done on hardened steel (along
with an EDM machine). Also one of the few that can be held by hand.
A pedestal grinder is a larger version of a bench grinder that is
mounted on a pedestal, which is
Numerical control is the use of codes to program the movements
and functions of a machine tool.
Codes are composed of letters varying from A to Z and of
numbers from 0 to 9.
Most controls use the Word Address Format:
The word address format features
-Heat treatment advantages: increase hardness and tensile strength, improve ductility, and
soften them for subsequent manufacturing procedures.
- Casting is a manufacturing process by which a liquid material is usually poured into a
CIVE 202 CONSTRUCTION MATERIALS: METALS AND POLYMERS
Winter Session 2016
Hamza Al Ktaishat
Table 9-6. Recommended Slumpa for
Various Types of Construction
walls and footings
Plain footings, caissone, and
Beams and reinforced waile
Pavements and slabs